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Table of Contents
Can I use my compressor as a paint sprayer?
Air compressors use a power source to create pressurised air in a storage tank, which can then be used for a variety of applications, including spray painting.
Can you spray walls with compressor?
You can’t cover much space with rollers, and the rollers can leave marks on walls. Using an air compressor and a paint sprayer can help you cover more space at one time and can help you make sure that you get an even coat of paint on your surface.
What type of air compressor do I need for a paint sprayer?
A 15-20 CFM air compressor is a good match for a 10 CFM paint gun. A 6-8 CFM air compressor is a good match for a 4 CFM paint gun.
How do I set up an air compressor for spray painting?
- Apply your safety gear before starting any work.
- Connect your air spray gun to your air compressor via the hose and other attachments (see diagram above)
- Ensure your compressor is delivering adequate CFM.
- Mix your paint/primer and solvent to the recommended ratios.
Can a 6 gallon compressor spray a gun?
This is why, while you can use a 6 gallon air compressor to power a nailer, you cannot use it for paint sprayer. Paint sprayers require a compressor with a large tank, preferably from 50 gallons and above, in order to be able to keep up with the spray gun.
What kind of paint gun and air compressor should I use?
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How do you spray water with an air compressor?
- Turn on the air compressor, and let it build up pressure. …
- Connect one end of a garden hose to a faucet on the outside of your house or garage.
- Connect the other end of the garden hose to the water line connection on the pressure washer attachment. …
- Plug the air hose from the air compressor into the air line connector.
What kind of paint gun and air compressor should I use?
After constant use, the PSI in the air compressor will drop and the PSI in the tank needs to be recharged or increased.
PSI stands for pounds per square inch.
What is the best PSI for spray painting?
When spraying base coat you want to spray at about 26-29 PSI. They way you read this is at your gun, trigger pulled air flowing through and your dial reading 26 psi. When spraying clear coat I like to up the pressure 2-3 psi for a little more atomization and better flow out.
What kind of paint gun and air compressor should I use?
Proper air pressure in the spray gun is critical to successful painting
In this post I will not only cover correct spray gun air pressure needed for a great paint job, but I will also discuss HVLP, LVLP spray guns and air compressors.
When I say air pressure, I don’t mean air cap pressure. I’m referring to the air pressure at the throat of your spray gun when the trigger is pulled.
Let’s get into that, shall we?
High pressure low pressure (HVLP) spray gun air pressure adjustment for base coat clear coat
When spraying base coat you should spray at around 26-29 PSI. You read this on your gun, draw air through it and your dial reads 26psi.
When spraying clear coat I like to increase the pressure by 2-3 psi for a bit more atomization and better flow. Adjusting the air pressure to around 28-29 PSI for clear airflow will ensure you have great airflow.
Most HVLP spray guns use 10-14 scfm at 40 psi. This is the air pressure volume per cubic foot.
Low volume, low pressure spray gun
10-15 psi when the trigger is pulled for the basecoat is what most say to set your gun. Personally I spray at around 17psi when spraying basecoat and 20-25 for clearcoat with the low volume, low pressure spray guns.
The normal scfm these guns use is 5-7 scfm cubic feet per minute. Volume of air used at 40 PSI.
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Air compressor required to set up shop
When shopping for an air compressor, pay attention to the air compressor reviews.
Compressor powers are over the top these days (what’s new) lol…
You need to check the “under load” rating number. This is the actual horsepower rating. Don’t look at the number of days on the big box or label.
Here’s a great read on the big lie of air compressor ratings.
Spray gun air pressure for DIY air compressor
A 20-35 gallon (75-133 liter) air tank that puts out between 1.5 and 2.0 horsepower under load is a great little setup.
You can paint a small car or motorcycle with this tank using an LVLP spray gun.
The only warning would be condensation.
Be sure to have at least two water filters. One 10-15 feet from your tank and one on your gun neck to keep the water off your lines.
If you’re using a smaller compressor, remember that you’ll probably be using a 110v outlet and the maximum horsepower a 110 can safely put out without tripping your breakers is 2hp.
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Hardcore Hobby/PRO Use Air Compressors
A 50-100 gallon (189-378 liters) air compressor with a horsepower rating of 4-6 horsepower.
Of course this will use a 240VAC wiring system. Similar to your home dryer or central air conditioner.
To learn more about air compressor reviews, click here.
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What compressor is best for spray painting?
Best Pressure Air Compressor for Spray Painting—McGRAW 21-Gallon 175 PSI Oil-Free Vertical Air Compressor. With wheels and a handle, it’s easy to get pressurized air on any job with this 21-gallon McGRAW compressor. It’s another slightly larger tank that’s still fairly quiet compared to others.
What kind of paint gun and air compressor should I use?
Welcome to the Thomas Guide to the Best Air Compressor for Spray Painting 2022. Thomas has been connecting North American industrial buyers and suppliers for more than 120 years. If you purchase products through our independent recommendations, we may earn an affiliate commission.
Spray painters fall squarely into the category of tools that make the lives of professionals a lot easier. Without an air compressor, powerful and fast painting jobs are almost impossible. The bulky or easily maneuverable compressors provide a lot of power behind paint sprayers used to paint cars, sidewalks, houses and fences.
An air compressor is required to properly operate many tools such as paint sprayers
Credit: Shutterstock/FarisFitrianto
Compressed air tanks come in all shapes and sizes. There are heavy duty equipment that must be moved by attached wheels and others that are lightweight and can be easily lifted and transported around a job site. Like any tool, the best compressor depends on the needs of the user.
Best Air Compressor for Spray Painting – Buyers Guide
Research and personal reviews have all led this air compressor choice to deserve a spot on this list of top compressors. Before making a selection, the buyer should consider operational considerations. Air compressors all have different performance levels, so this is essential to finding the right air compressor that will meet and exceed expectations, especially when spray painting.
Types of Air Compressors
There are many different types of air compressors including reciprocating, screw, centrifugal and axial compressors. Although they serve the same purpose, there are specific models built for residential, commercial, and industrial use. A more powerful air compressor such as powered by impellers is not needed if you are looking for a smaller air compressor for spray painting. Here are some of the most common air compressors used in commercial settings.
piston compressors
For small businesses and workshops, a piston compressor or a screw compressor is often best. A piston compressor works with pistons.
Compared to industrial and even other small commercial models, reciprocating compressors are not that big of an investment. They’re not fussy when it comes to repairs and maintenance, and they work where paint, oil, gases and fumes are flying around.
The noise made by a piston compressor can be bothersome as it is typically louder than a screw compressor. If air quality is not a priority, this is a more economical route.
screw compressors
A screw compressor is quieter than a piston compressor, resulting in no vibration or pulsation when air pressure is released. They are available in oil-free and oil-lubricated versions.
Screw compressors also have the impressive ability to run effortlessly at 100% duty cycle. This type is a great option, but it’s worth noting that they can be more expensive and aren’t built for infrequent use.
Businesses that need a reliable air compressor for 24/7 use should shop here, but businesses that only need an air compressor occasionally should keep shopping.
Oil-free vs. oil-lubricated compressors
The type of oil lubrication that a compressor needs (or does not need) should be considered when making a purchasing decision. Oil compressors with an oil lubricated pump that require oil to work properly are reliable but can be more difficult to manage. The air they release isn’t that clean either.
Oil-free air compressors do not require oil and generally require less maintenance. They use different chemicals to keep their parts running smoothly. Their downfall comes in the form of life expectancy. An oil-free air compressor may not last as long as its oil counterpart.
There are also different names for small air compressors. Pancake air compressors, hot dog air compressors, and pontoon compressors are just a few of the different air compressors available to run tools like paint sprayers.
Thomas’ top picks for the best air compressor for spray painting 2022
Discover portable air compressors, oil-free compressors, and other options suitable for running paint sprayers.
Best Compact Air Compressor: CRAFTSMAN Compressor Combo Kit | buy now
Best Quiet Oil-Free Air Compressor: Makita MAC100Q Quiet Series, 1/2 HP, 1 Gallon Compact Oil-Free Electric Air Compressor | buy now
Best Air Compressor for HLVP Spray Gun: DeWALT 27 Gal. 200 PSI Portable Air Compressor | buy now
Best Portable Air Compressor: BOSTITCH Pancake Air Compressor Oil Free Pump | buy now
Best All-Around Air Compressor for Spray Painting: PORTER-CABLE Air Compressor | buy now
Best for Airbrush Painting: California Air Tools CAT-1P1060S Lightweight and Quiet Portable Air Compressor | buy now
Best Air Compressor for Car Painting: Husky 20 Gal. Vertical Electric Powered Silent Air Compressor | buy now
Best Air Compressor for Spray Painting: McGRAW 21 Gallon 175 PSI Oil Free Vertical Air Compressor | buy now
Scroll down to learn more about these top picks for best air compressors for spray painting, according to many satisfied buyers.
*Prices listed in this article are in US dollars as displayed on amazon.com (USA), Harborfreight.com and Homedepot.com as of May 2022
1. Best Compact Air Compressor – CRAFTSMAN Compressor Combo Kit
Jobs that don’t require the heavy lifting of a giant air compressor can be adequately done with something more portable like CRAFTSMAN’s pancake compressors.
This little compressor also comes with a brad nailer, a finishing nailer and a stapler, which is ideal for contractors who do more than one job. While it’s not the loudest compressor (especially when used outdoors), some buyers have noted that the echo caused indoors makes it significantly louder.
“Fills up fast,” noted one customer. “The refill rate was fast enough to spray the underside of the car with an anti-rust coating.” Another person added, “Works great for brad nailers and small tools, paintwork and standard tires,” although she pointed out that they “larger tools will not handle”.
specifications
Best Suited For: Paint Sprayers, Nail Guns, Tires
Maximum Pressure: 150 PSI
Weight: 30 pounds
2. Best Quiet Oil-Free Air Compressor – Makita MAC100Q Quiet Series 1/2 HP 1 Gallon Compact Oil-Free Electric Air Compressor
At 58 decibels and under 27 pounds, the Makita MAC100Q is quiet and lightweight, yet packs plenty of power. Smaller detail spray guns can count on this ½ HP unit. Other tasks such as inflating tires and clearing workspaces with a blower are also possible.
It’s not ideal for large, heavy-duty sprayers, but it’s fine for smaller jobs. Makita has two other options in its Quiet series that have slightly larger tanks and progressively contain more power, but still maintain a smaller volume.
“What I really like is the calm,” commented one customer. “That was the decisive factor in my purchase decision. I’ve noticed that it can produce a deep rumble into the ground. But if you put it on something soft (like carpet or foam) it all goes away.”
specifications
Best Suited For: Small jobs, early morning or late night jobs that require a quieter air compressor for spray painting
Maximum Pressure: 135psi
Weight: 27.6 pounds
3. Best Air Compressor for HLVP Spray Gun – DeWALT 27 Gal. 200 PSI Portable Air Compressor
Where a small air compressor succeeds in mobility, it often falters in performance. This DeWALT compressor is larger but has wheels so it can be maneuvered around a construction site. Depending on how many standard cubic feet per minute it runs (and how much pressure), it can power an HVLP spray gun.
Despite being larger and more powerful than some hot dog compressors or pancake compressors, reviewers noted that it’s still fairly quiet — and even quieter than a few pancake compressors out there. This is partly thanks to its oil-free pump.
“This unit rolls around very easily and the tires make it easy to maneuver over just about any reasonable terrain,” wrote one buyer. “It’s an air compressor, so it’s never going to be really quiet; However, I found this unit to be a lot quieter than my little 2 1/2 gallon pancake compressor… Overall, I love it! I paired this with the Dewalt 50ft retractable air hose reel and bought several Dewalt pneumatic tools (hammer drill, die grinder, paint sprayer, wrenches).”
specifications
Best for: paint sprayer, plasma cutter, die grinder and other tools
Maximum Pressure: 200psi
Weight: 136 pounds
4. Best Portable Air Compressors – BOSTITCH Pancake Air Compressor Oil Free Pump
If portability continues to be a top priority for businesses, BOSTITCH flat air compressors are worth a look. With almost 5,000 five-star reviews, this pancake compressor is durable and adaptable to different tasks and weather conditions. It’s admittedly louder than many other options available, but that wasn’t enough to affect most customers’ satisfaction.
The BOSTITCH compressor handles pneumatic tools with ease that cannot be said of comparable sized air compressors.
“I finally have a compressor that I can use for any construction project, anywhere,” writes a satisfied buyer. “This little unit provides all the air pressure I need for any job, whether it’s a nail gun, paint sprayer or other air tool. Great product, great price.”
specifications
Best for: paint sprayer, frame nailer, stud nailer and for inflating tires
Pressure: 150psi
Weight: 29 pounds
5. Best All-Around Pancake Compressor for Spray Painting – PORTER-CABLE Air Compressor
Size is often an indicator of performance when it comes to finding the best air compressor, but not always. The oil-free pump and perfect pressure make the PORTER-CABLE air compressor a competitor to other larger compressors. This is often compared to the DeWALT pancake compressor and there are many similarities between the two.
The PORTER-CABLE model was touted as a rugged, durable compressor. Reviewers mentioned having them for years, with one person owning theirs for over a decade before giving up.
“Bought this because a buddy had it and I was surprised that it could handle a frame nail gun with no problems and I can’t tell you how happy I was with it,” wrote one customer. “It’s small, but very powerful, and it’ll beat like hell and keep ticking. I have used it for painting, sanding, framing etc and it really is a great little compressor that requires very little maintenance or care and will give you years of reliable service.”
specifications
Best for: paint sprayer, hand nailer, oscillating saw, pneumatic wrench and other tools
Pressure: 150psi
Weight: 31.3 pounds
6. Best for Airbrush Painting – California Air Tools CAT-1P1060S Lightweight and Quiet Portable Air Compressor
This California Air Tools compressor may be the right air compressor for buyers interested in machines that can compress air quietly and rebound quickly. It fills up in less than 30 seconds and only reaches 56 decibels of sound.
The California Air Tools oil-free pump model makes a great air compressor for painting, especially when connected to a paint gun or smaller sprayer designed for smaller details. A larger compressor may be required to paint furniture or to cover larger areas (such as walls or outdoor areas).
“I was drawn to this device for its quiet operation and was not disappointed,” commented one person. “I just ran the device for a continuous 36 hour event where it ran about 20 seconds per minute. It ran flawlessly and quietly. I am also satisfied with the quality of the equipment and even the paintwork.”
specifications
Best Suited For: Paint spraying and model painting
Pressure: 120 maximum
Weight: 29 pounds
7. Best Air Compressor for Car Painting – Husky 20 Gal. Vertical Electric Powered Silent Air Compressor
One of Husky’s best air compressors for paint options is this 20-gallon steel tank. It is equipped with wheels for easy transport and a space-saving vertical frame that differs from the classic pancake or hot dog compressor.
The tool is equipped with a high flow regulator knob, intake muffler filters and a water drain valve. It’s a little slower to recover than others, according to customers, but still provides a solid method of getting air pressure into a paint sprayer. It’s pretty quiet too.
“Save your ears; [it’s] super quiet, works great,” wrote one customer. “Kept pretty well with the HVLP paint gun for painting the camper hull.” Another person noted that they no longer “have to wait until 10am to paint, I can start earlier now without disturbing anyone.”
specifications
Best Suited For: Paint sprayers, air hoses, drills, nailers and impact wrenches
Pressure: 165psi
Weight: 106 pounds
8. Best Air Compressor for Spray Painting—McGRAW 21-gallon 175 PSI oil-free vertical air compressor
With wheels and a handle, this 21-gallon compressor from McGRAW makes it easy to get compressed air for any job. It’s another slightly larger tank that’s still pretty quiet compared to others.
While it’s a good choice for general spray painting, a handful of customers have also been able to paint cars with this supercharger. It is oil free and therefore requires less maintenance than an oil lubricated version.
It has the most powerful motor of the above options at 1.5 hp and is protected with a system that can clock thermal overload. “Great device for my shop,” wrote one reviewer. “Adjustable pressure from painting to high-pressure blow-off.” Another person also mentioned that it “provides all the power I need for wood shop jobs and paint sprayers.”
specifications
Best Suited For: Paint sprayers, grinders, nailers and tire inflating
Pressure: 175psi
Weight: 88.3 pounds
The Best Air Compressor for Spray Gun Painting – Summary
Regardless of appearance and size, compressors are needed to run a paint sprayer, whether it’s painting furniture, painting house facades, or painting cars. The best air compressor for painting is hard to come by when the choices are overloaded. Quality air compressors with a highly efficient motor, pressure gauge and durable air hose are essential. Tank size, pressure, and gallon capacity should also be considered.
When shopping for an air compressor for painting, the CRAFTSMAN model ($279, Amazon) is the best small air compressor to get the job done. Smaller air compressors might not look like much, but many of them make our list of the best air compressors for painting.
The California Air Tools Compressor ($164, Amazon) makes a great air compressor for painting smaller objects. Although the brand is known for their dual piston pump that powers many tools, this version’s more compact tank size is just as great.
We hope our review of the best air compressors for spray painting has been helpful. For more suppliers of related products, including utility air compressors, medical air compressors and portable air compressors, please visit our additional guides or the Thomas Supplier Discovery Platform.
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How many PSI does it take to paint a car?
Look for a minimum of 15 psi, with some applications, such as clear coat, better-suited to 20 or 25 psi. Horsepower: For auto painting, a 10hp compressor will typically suffice. However, higher horsepower compressors may operate more efficiently, and can be used for other tasks.
What kind of paint gun and air compressor should I use?
An air compressor used to paint cars works by breaking up paint with compressed air and using that pressure to create a fine mist of paint through a nozzle. The car painting air compressor delivers air in a stream powerful enough to turn the paint into fine, liquid particles, ideal for evenly coating the vehicle.
In addition to providing an even flow that ensures efficient use of paint, auto painting with an air compressor is faster and easier than other painting methods. It allows full coverage – even in hard-to-reach places – without having to manually check that the paint covers all surfaces.
What size compressor should be used to paint a car?
The answer depends on several factors. Depending on the size of your operation and the types of car painting you need to do, the criteria for compressors can vary. For example, painting an entire vehicle presents more difficult requirements than a repair or touch-up job.
The following list considers some of these more common uses:
Tank Size: The tank size of an air compressor for spray painting cars makes a difference in the overall efficiency of the operation. Smaller tanks sometimes have to be refilled several times for larger jobs such as painting the entire vehicle. Smaller tanks can also result in more variation in paint pressure and flow, resulting in uneven coatings. Tank sizes of 50 gallons or larger are typically recommended, while a tank size of 60 gallons or larger typically means an entire vehicle can be coated in one go without refilling.
The tank size of an air compressor for spray painting cars makes a difference in the overall efficiency of the operation. Smaller tanks sometimes have to be refilled several times for larger jobs such as painting the entire vehicle. Smaller tanks can also result in more variation in paint pressure and flow, resulting in uneven coatings. Tank sizes of 50 gallons or larger are typically recommended, while a tank size of 60 gallons or larger typically means an entire vehicle can be coated in one go without refilling. CFM value: A higher CFM (cubic feet per minute) is required to break down the paint into the small particles that allow the vehicle to be spray painted. A high air volume makes all the difference for an even paint application and a uniform appearance of the finished coating. We’ll discuss psi below, but a high-volume, low-pressure compressor (HVLP) is usually sufficient to complete an automotive paint job. Look for two-stage compressors that deliver close to 20 CFM.
A higher CFM (cubic feet per minute) is required to break the paint down into the small particles that allow the vehicle to be spray painted. A high air volume makes all the difference for an even paint application and a uniform appearance of the finished coating. We’ll discuss psi below, but a high-volume, low-pressure compressor (HVLP) is usually sufficient to complete an automotive paint job. Look for two-stage compressors that deliver close to 20 CFM. Air Pressure: As mentioned above, the pressure (psi) in an air compressor for painting cars is less important than CFM. The pressure rating indicates the pressure at which the paint will be delivered from the nozzle, which is less important than getting proper atomization of the paint from high CFM. Look for a minimum of 15psi, with some applications such as B. clear coat, are better suited for 20 or 25 psi.
As mentioned above, the pressure (psi) in an air compressor for painting cars is less important than CFM. The pressure rating indicates the pressure at which the paint will be delivered from the nozzle, which is less important than getting proper atomization of the paint from high CFM. Look for a minimum of 15psi, with some applications such as B. clear coat, are better suited for 20 or 25 psi. Horsepower: A 10 hp supercharger is usually sufficient for car painting. However, higher horsepower compressors can work more efficiently and can be used for other tasks.
Air Compressors by Kaishan USA
At Kaishan, we offer an extensive range of screw compressors with the qualities and features ideal for painting cars. Our product line includes the two-stage compressors required to deliver adequate CFM.
We also have dryers and filters to keep the paint application consistent and attractive. Additionally, our entire product line focuses on efficiency, value and performance. This is a good investment for every application. For more information, browse our product line today.
What PSI should I spray clear coat?
When spraying base coat clear coat systems, you want to spray at 26-29 PSI. You measure this PSI by pulling the trigger and letting air flow through the tip of your gun with your dial or digital readout saying 26-29 PSI.
What kind of paint gun and air compressor should I use?
In this post I will not only cover correct spray gun air pressure needed for a great paint job, but I will also discuss HVLP, LVLP spray guns and air compressors.
When I say air pressure, I don’t mean air cap pressure.
I am referring to the air pressure at the throat of your spray gun and when the trigger is pulled.
HVLP air pressure setting for base coat clear coat (high volume low pressure)
When spraying base coat clear coat systems you should spray at 26-29 PSI. You measure this PSI by pulling the trigger and blowing air through the tip of your pistol with your dial or digital readout showing 26-29 PSI.
When spraying clear coat I usually like to increase the pressure by 2-3 psi for a bit more atomization and better flow. 28-29 PSI is the sweet spot in my opinion.
Most HVLP spray guns use 10-14 scfm (air volume) at 40 psi. (volume of air pressure per cubic foot).
(LVLP) Air pressure setting (Low Volume Low Pressure)
10-15 psi when the trigger is pulled for the basecoat is what most say to set your gun.
Personally I spray at around 17psi when spraying basecoat and 20-25 for clearcoat with the low volume, low pressure spray guns. Which I rarely do because I have enough air supply for my weapons.
Normal scfm consumption for LVLP guns is around 5-7 scfm (cubic feet per minute) and the air volume is used at 40 PSI.
What Size Air Compressor Do You Need To Set Up?
When shopping for an air compressor, pay attention to the air compressor reviews.
Nowadays the compressor performances are excessive. Here’s what I mean…
You need to check the “under load” rating number. This is the actual HP (horsepower). Don’t pay attention to what the number on the big box or sticker says.
Here’s a great read on the big lie of air compressor ratings. <<==Click there. Small air compressors for DIY applications A 20-35 gallon (75-133 liter) air tank that puts out between 1.5 and 2.0 horsepower under load is a great setup for the small shop or home workshop. If you only paint a small car or motorcycle, using this tank with an LVLP spray gun is a good option for you. The only warning would be condensation. But that also happens with larger tanks. Just make sure you have at least two water filters in your setup. One about 10-15 feet from your air compressor tank and one on your gun neck to keep the water out of your lines. You know those little $5 plastic water filters that you screw onto the air intake of your spray gun. We sell them here in our spray gun shop. Also check out our Warwick spray gun line if you go there. They are a quality spray gun and affordable. Keep in mind that if you are using a small compressor you will likely be using a 110 volt outlet. The maximum horsepower that a 110 volt line can safely deliver without it tripping your circuit breaker is around 2 horsepower. For hardcore hobby and PRO use air compressors Obtain a 60-100 gallon (189-378 liters) air compressor with a horsepower rating of 4-6 horsepower or more. The 60-80 gallon is the most popular size for shops and home workshops that need some power. Of course, this setup is powered by a 240VAC wiring system similar to your home dryer or central AC system outlet. Or a larger 3 phase system. Introducing the new Atom Spray Guns! This new range of spray guns is very popular in the automotive world. With its combined Japanese and German style craftsmanship, this airbrush will definitely amaze you! Check them out on Zoolaa now! So, are you ready to become a body and paint samurai? … Then come join us! Hai Sen Sei, I'm willing to learn more about the body and paint job so I can kick ass and chew gum. What are you waiting for? Join us with THOUSANDS of other like-minded members in our private and exclusive Auto Body VIP course. We take you by the hand and accompany you step by step from A-Z. It doesn't matter if you're a complete novice or an advanced painter looking for new tricks. I'm sure you will benefit from it. In fact, we back everything with a 60-day money-back guarantee! In short, you will no longer stand out in the rain and be part of a community that cares about your success. I hope you enjoyed the post and the video! keep us posted, okay? We talk about this later! -Tony
Is a 3 gallon air compressor good for painting?
A contemporary 3-gallon (11.36-liter) air compressor can handle light-duty pneumatic tools, spray painting, small to medium scale inflating, dry cleaning, moderate sanding & blasting, some gardening, and farming tasks, and a plethora of DIY jobs.
What kind of paint gun and air compressor should I use?
A modern 3 gallon (11.36 liter) air compressor can handle light duty pneumatic tools, spray painting, small to medium scale inflation, dry cleaning, moderate sanding and blasting, some yard and farm work, and a variety of home improvement jobs.
The use, effectiveness and efficiency of any 3 gallon air compressor depends on its power, pressure and how quickly the tank is refilled. In addition, size, weight and volume determine whether it fits in any environment you imagine. This guide will cover all the tasks a 3 gallon air compressor can handle.
Light pneumatic tools
Three gallon air compressors can conveniently power lightweight pneumatic tools. You can use one for:
Nail
staple
screw connection
attachment
Some impact wrenches and blowguns and other hand-held pneumatic tools should work just fine, but obviously a jackhammer is out of the question.
Compact air compressors are more suitable for nailing into somewhat delicate materials. For example, if you’re working with fairings and molding, a 3-gallon model, with its CFM and PSI range, is a safer alternative than the more powerful variants.
The same principle applies to light drills and other small to medium-sized hand-held air tools. Any small pneumatic tool that needs short bursts of air for a job that takes up to half an hour can depend on a quality 3 gallon air compressor.
You may consider the Craftsman CMXECXA0200341 air compressor available on Amazon.com (affiliate link). This model delivers 3.7 CFM (0.10 CMM) at 40 PSI (275.8 kPa) and 2.6 CFM (0.07 CMM) at 90 PSI (620.5 kPa).
The maximum pressure range is 125 to 155 PSI (861.8 to 1068.7 kPa). However, the tank will need to be refilled frequently if you are running the unit at its peak pressure. The 1.5 hp (1103.25 W) power puts this model at the high end of the spectrum for this class of air compressor.
spray painting
A 3 gallon (11.36 liter) air compressor is handy for minor paint jobs. You can effortlessly paint a door and achieve the professional finish you expect. If you have some time to fill up the tank, your mission can range from a wall to an entire house.
If you’re planning on painting the interiors, consider the Makita MAC320Q Electric Air Compressor (also on Amazon.com – affiliate link). This oil-free electric model operates at just 60 dB. The entire Makita Quiet series ensures a pleasant working environment.
The power of 1.5 HP (1103.25 W) is more than sufficient for spray painting. The model operates at just 1,750 rpm, which allows the engine to run longer. 2.6 CFM (0.07 CMM) at 90 PSI (620.5 kPa) is suitable for personal painting projects.
Small to medium inflation
3 gallon air compressors come in handy for just about any inflatable you have in the home. You can inflate:
bicycle tires
pool tubes
Balloons to celebrate
air cushions and cushions
Inflatable futons or mattresses
Many such utilities in your home or workshop
Not all 3 gallon air compressors are effective or practical for inflation work. Many models are unable to support continuous CFM at a given PSI. You may consider Amazon.com’s Kensun AC/DC Portable Air Compressor (paid link).
The 3.38 pounds. (1.53 kg) model is an efficient gas generator. While the maximum pressure is 120 PSI (827.4 kPa), you can use this air compressor at 35 PSI (241.3 kPa) for 30 minutes. Kensun also offers accessory nozzles in the box.
Whenever you need to inflate balls, whether it’s for football or basketball, on the field or court, a small and lightweight 3-gallon air compressor comes in handy. However, the more compact models are not suitable for a regular inflatable pool or large tires of cars, vans and trucks.
Dry cleaning of countless items
Air compressors are amazingly effective at dry cleaning. A 3 gallon model is small and light enough to bring to any room or space. You can clean almost anything, be it:
domestic appliances
Most hardware and tools
furniture and upholstery
indoor plants
Most modern air pressures have a wide and adjustable pressure range. You can use a reasonably low PSI for gentle cleanings such as:
When caring for succulents
Completion of 3D printed models
All of modest size
Three gallon air compressors are simple and effective cleaning machines, especially for tight spaces. Imagine your computer keyboard or laptop keyboard, musical instruments, digital cameras and any small to medium sized device that needs a blast of air for a proper cleaning.
Moderate sanding and blasting
Contrary to what may be obvious, tank capacity is not the most consequential limiting feature of a 3-gallon air compressor. Cubic feet per minute (CFM) or cubic meters per minute (CMM) has a greater impact on a given utility or application.
Commercial or industrial grinding and blasting requires anywhere from 10 to 100 CFM (0.28 to 2.8 CMM) at 90 to 100 PSI (620.5 to 689.5 kPa). Three gallon air compressors don’t have as high CFM capacities. However, if you need to sand or blast a relatively smaller area, a 1.5 HP (1103.25 W) air compressor can get the job done.
gardening and farming
Three gallon air compressors can make various gardening and farming tasks easier.
You can:
Dry cleaning of plants and other furnishings in a garden.
Spray plants on a small farm.
Ventilate greenhouses and power small to medium sized farming equipment.
Some farming tasks may require high continuous CFM at certain PSIs. Check out these air compressor specs to consider before you buy.
A plethora of DIY wonders
Small, portable, and lightweight air compressors with a 3 gallon tank have a plethora of creative uses.
You could:
Airbrush small to medium sized objects
Clean, grind and polish ornamental and functional fittings
The DIY applications are subject only to your imagination.
A 3 gallon air compressor is a crucial tool in home workshops. Common dusty messes are easier to clean if you have compressed air available.
On the fun side, you can use some compressed air to stoke the fire in your grill, especially if you don’t have much time and everyone is already starving.
A small air compressor is useful for some decorative purposes. You can build a small water fountain or DIY snow machine.
Prioritize CFM and dB over HP, PSI and gallons
The 3 gallon tank capacity in reality only has an impact on how quickly or frequently the air compressor needs to be refilled. Horsepower, pounds per square inch and gallon are important, but not as much as cubic feet (meters) per minute and decibels.
Since you’re unlikely to use a 3 gallon air compressor for large applications, unlike CFM, which decides the actual blowout and action of the compressed air from the compressor, PSI doesn’t have much of an impact.
The noise level is also significant as you will likely be using a small and portable air compressor more often in your workshop or at home. Some 3 gallon air compressors can be unbearably loud.
Conclusion
A 3 gallon air compressor is a multipurpose tool that is good for dozens of light jobs. The small size and reasonable weight allow portability. However, before you buy a model, always compare all the technical data, not just the tank capacity and horsepower.
Sources
What size air compressor do I need for HVLP?
HVLP guns require plenty of air, so you need to have a larger capacity compressor higher than those used for diy home works. In order to spray the full range of finishing products, however, you need at least a 21⁄2 to 3 HP compressor with a 75 liters (20 gallons) tank.
What kind of paint gun and air compressor should I use?
HVLP spraying avoids pollution and minimizes material waste…
HVLP means High Volume – Low Pressure. More specifically, this means a high volume of air (HV) exiting the air cap and a low air pressure (LP) at the grip. Instead of a 3.5 bar/50 psi blast of air escaping like an old gun, only about 0.7 bar/10 psi comes out of an HVLP gun. On very old guns, the 50 psi puts as much paint on the air as it does on the part.
To meet EPA requirements, Sames Kremlin developed their own line of HVLP sprayers as the FPRO HVLP. (Our professional tool made of stainless steel, aluminum or metal parts is powered by compressed air, while others like Wagner or Homeright suggest electric turbines for home projects). Due to the higher displaced paint volume, more of it ends up on the component surface. This means you save money on paint consumption by using less of it. HVLP is one of the most efficient types of Airspray spray guns you can get (for many markets: industrial, car bodies…)
What compressor do I need to take full advantage of my FPro HVLP handgun?
HVLP guns use a lot of air, so you need a larger capacity compressor than those used for DIY jobs. However, to spray the full range of finishing products you will need at least a 21⁄2 to 3 hp compressor with a 75 liter (20 gallon) tank. With one of this size, you can effectively atomize the product and supply a constant air pressure to the gun. This system allows you to adjust the pressure and fluid viscosity as needed.
Don’t forget that you need to filter the air to prevent water, oil and dirt from entering the gun. If you have a conventional compressor, a regulator is required to set the air pressure properly.
HVLP is environmentally friendly: Of course masks should be worn as a precaution, but with an HVLP spray gun there is less exposure to harmful overspray.
SAMES KREMLIN has developed and engineered its own range of HVLP FPro spray guns, based on 95 years of experience in conventional airspray technology…
HVLP is the leader in transmission efficiency performance. In doing so, less paint is wasted and you get further with less paint (varnishes, varnishes for the market including metal, furniture applications…). Less waste means a cleaner work environment. More paint gets to the surface, not the area around it. This saves more time in subsequent cleaning for easy maintenance.
Our lightweight FPro and M22 spray guns offer great precision (under pressure or with paint cups): the HVLP solution can be used for some very delicate touch up spray jobs. To meet the 0.7 bar/10psi at the air cap, an Fpro HVLP gun requires more airflow to break paint into fine particles because the air pressure is reduced compared to a traditional Airspray gun while maintaining ideal spray patterns will . The higher air volume, thanks to a larger air ring around the nozzle, helps ensure there is more paint on the part, reducing overspray and air pollution in the work area and helping to meet the most stringent regulations.
Visit our website for product spec reviews, spray gun kits, warranty programs and more!
What size air hose do I need to paint a car?
The hose, can be manufactured from PVC, PU or rubber, is used to carry sufficient compressed air from the pressure tank to the spray gun. The proper hose diameter approved by the spraying industry is minimum 3/8″ to 1/2″.
What kind of paint gun and air compressor should I use?
How many CFM does it take to paint a car?
Painting a Car – What Size Air Compressor To Paint Your Car? It’s recommended to pick yourself up a 60 Gal tank with a 5-6 HP compressor that put’s out enough CFM that will supply your spray gun. Look for CFM in the ranges of 14-18 at 90PSI. This is what I have setup at the LABAP shop.
What kind of paint gun and air compressor should I use?
If you enjoyed the blog below, check out the LABAP VIP course to help you transform into an auto body and paint professional from the comfort of your own home!
hey,
We’ve received a new question from some of our loyal learnautobdyandpaint.com subscribers
“Hi Tony, I’m new to the auto body/finishing world and just want to ask: What is the reason for needing a 50-60 gallon supercharger? and why can’t I use a 25-30 gallon compressor for a full paint job? if due to pressure fluctuations. Can we paint the whole car step by step? let’s say one side, let the compressor fill, then the front, let the compressor fill, then the other side, let the compressor fill again and finish with the back of the car. What size of air compressor to paint a car? If this is possible, can you teach us how…?”
Answers…
With a small air compressor tank, you just don’t have the volume of air (cfm) to paint an entire car at once. Your gun will strain and fight, as will your air compressor.
Your smaller tank will most likely run out of air while spraying non-stop and driving around a full car at once.
You can take the risk and paint the entire car in one fell swoop if you can hear and feel the drop in air pressure and adjust accordingly. (I did) and have had no problems due to years of experience painting cars.
As a result (you will also have condensation problems) your smaller tank WILL GET hot and generate water from being constantly on and running. See, water usually collects in tanks anyway, that’s why you have a drain at the bottom of your air compressor tank. Also make sure to empty it every now and then. More often with a smaller tank.
If you’re painting with a smaller tank like a 15-25 gallon tank, you’ll need to drain the tank every 2-3 trips around the car just to be safe. OR leave it a little cracked so it will drain automatically when water accumulates. It’s also wise to have a water separator (in-line) about 10-15 feet from your tank and one on the neck of your gun. That goes for small compressors or big shop style. It’s just good insurance.
Painting a car – what size of air compressor to paint your car?
It is recommended to get a 60 gallon tank with a 5-6 hp compressor that will put out enough CFM to feed your spray gun. Look for CFM in the ranges of 14-18 at 90 PSI. This is what I set up in the LABAP shop.
The tricky part… YES, you can paint the car in stages (same day) with a smaller air compressor, but you might run into problems with overspray at the clear coat stage. If you put clear coat on the car, you should spray it on right away, because if you wait and spray too long, your other glossy sheets of clear coat will become dull from the overspray you create. You have a specific time frame in which overspray will simply melt into fresh clear coat, and that’s what paint blitz times are all about. More about this in the VIP Club.
When freshly sprayed clear coat becomes sticky and you create more overspray by spraying other adjacent panels because you had to wait for your tank to refill etc.
The clear coat overspray will make your work look dull. Of course, if you plan to completely stain and polish sand, you have no problem. What you can do, if you’re not painting with Candy, Flake, or Pearl, is paint the hood, front bumper, and your two front fenders all at once.
You know, two coats of base and two coats of clear coat. Let that dry completely, then a day or two later cover all the painted parts, then paint your roof and doors that day and a few days later do your rear quarter panels, trunk and rear bumper to do the complete work.
This way you get the job done to the end and don’t have overspray nor do you have to polish.
It basically takes 3 days to paint your car.
I hope you got my point! Thanks for the great question 🙂
I hope this short article has inspired you that you can still paint your car or project with a smaller supercharger.
Don’t let things like that stop you. The successful person finds ways to get things done, no matter how ignorant or resource-poor.
You just do it!
PS If you’re interested in learning more about do-it-yourself car bodywork and painting, be sure to check out the NEW video Tony created that reveals the #1 auto bodywork and painting training course on the web by clicking here click!
Watch this short presentation here to the end, I am sure you will be amazed at what is behind the scenes of this website and the community that consists of thousands of enthusiastic VIP Club members from all parts of the world.
Be frustrated no more, learn everything you need to know with step-by-step training videos and access the full VIP Membership Club and community for honest support. You are not alone anymore, remember this.
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Bottom up!
Can I use my air compressor to paint my house?
Related Articles. Roller marks can ruin the looks of a room. Instead, use an air compressor and a spray gun to quickly apply an even coat of paint to the walls. Spraying the paint also will greatly reduce the amount of time you spend painting, leaving you time to do other things.
What kind of paint gun and air compressor should I use?
What is the best pressure for spray painting?
When spraying base coat you want to spray at about 26-29 PSI. They way you read this is at your gun, trigger pulled air flowing through and your dial reading 26 psi. When spraying clear coat I like to up the pressure 2-3 psi for a little more atomization and better flow out.
What kind of paint gun and air compressor should I use?
Proper air pressure in the spray gun is critical to successful painting
In this post I will not only cover correct spray gun air pressure needed for a great paint job, but I will also discuss HVLP, LVLP spray guns and air compressors.
When I say air pressure, I don’t mean air cap pressure. I’m referring to the air pressure at the throat of your spray gun when the trigger is pulled.
Let’s get into that, shall we?
High pressure low pressure (HVLP) spray gun air pressure adjustment for base coat clear coat
When spraying base coat you should spray at around 26-29 PSI. You read this on your gun, draw air through it and your dial reads 26psi.
When spraying clear coat I like to increase the pressure by 2-3 psi for a bit more atomization and better flow. Adjusting the air pressure to around 28-29 PSI for clear airflow will ensure you have great airflow.
Most HVLP spray guns use 10-14 scfm at 40 psi. This is the air pressure volume per cubic foot.
Low volume, low pressure spray gun
10-15 psi when the trigger is pulled for the basecoat is what most say to set your gun. Personally I spray at around 17psi when spraying basecoat and 20-25 for clearcoat with the low volume, low pressure spray guns.
The normal scfm these guns use is 5-7 scfm cubic feet per minute. Volume of air used at 40 PSI.
Introducing the Atom Squirt Guns! This range of spray guns has enjoyed great popularity in the automotive world due to its unique combination of Japanese and German craftsmanship.
Excellent quality but at a fraction of the cost of the more well known spray gun brands. Learn more about the Atom Squirt Guns at Zoola.
Air compressor required to set up shop
When shopping for an air compressor, pay attention to the air compressor reviews.
Compressor powers are over the top these days (what’s new) lol…
You need to check the “under load” rating number. This is the actual horsepower rating. Don’t look at the number of days on the big box or label.
Here’s a great read on the big lie of air compressor ratings.
Spray gun air pressure for DIY air compressor
A 20-35 gallon (75-133 liter) air tank that puts out between 1.5 and 2.0 horsepower under load is a great little setup.
You can paint a small car or motorcycle with this tank using an LVLP spray gun.
The only warning would be condensation.
Be sure to have at least two water filters. One 10-15 feet from your tank and one on your gun neck to keep the water off your lines.
If you’re using a smaller compressor, remember that you’ll probably be using a 110v outlet and the maximum horsepower a 110 can safely put out without tripping your breakers is 2hp.
Check out the amazing Atom X Finishes spray guns here at Zoolaa now. With combined Japanese and German craftsmanship, these high quality spray guns are definitely in a class of their own. The Atom Spray Guns have both LVLP and HVLP as an option. grab her now
Hardcore Hobby/PRO Use Air Compressors
A 50-100 gallon (189-378 liters) air compressor with a horsepower rating of 4-6 horsepower.
Of course this will use a 240VAC wiring system. Similar to your home dryer or central air conditioner.
To learn more about air compressor reviews, click here.
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How big of a compressor do I need to paint?
That being said, most air compressors with an air tank capacity of 30 gallons and up can usually handle painting a car. If you’re painting a classic full-size car or want to play it safe, a tank of 60 gallons or more should be enough to coat the vehicle in a single pass.
What kind of paint gun and air compressor should I use?
We often get calls asking how many gallons the compressor tank should be for painting a car. Although tank size is a factor, it is often a misconception when dealing with the painting process. Here are the important things to consider when considering what size air compressor you need for auto painting.
1. Attach your compressor to the spray gun
First you need to decide which paint gun you want to use to paint your car. The air used is controlled by the paint gun you are using. Paint guns like our Concours Paint Gun line may require as little as 4.5 CFM, while a high-end professional gun may require 12 CFM or more to spray paint properly.
If you are already tuned into or own a specific spray gun, you can try adapting your compressor to the gun or vice versa. Compressor capacity isn’t usually an issue, but the compressor itself and the CFM it puts out are issues. Just like paint guns, there are large, high-end compressors that will pump out the air you need, and there are smaller air capacity compressors that have a high CFM rating and can keep up with the required airflow without a problem.
2. Compressor tank size and CFM
Before considering your compressor’s tank size, you should match the CFM paint gun to the compressor’s CFM rating. For more information, see our guide to choosing an air compressor or our article on the size of an air compressor needed to paint a car. Make sure the gun you are using requires LESS than the compressor’s maximum output so you don’t keep it running all the time while painting. A good rule of thumb is to use a compressor with a CFM rating at least 50% higher than the paint gun.
At the end of the day, the CFM rating is more important than the gallons of air the compressor tank is storing. But that doesn’t mean the tank size doesn’t matter. Full-vehicle painting and other large-scale projects often require refilling from a tank that is too small, which means these projects take significantly longer. Smaller compressor tanks can also cause larger variations in paint flow and pressure. That being said, most air compressors with an air tank capacity of 30 gallons and up can typically paint a car. If you’re painting a full-size classic car, or want to play it safe, a 60 gallon or larger tank should be enough to coat the vehicle in a single pass.
3. Stand alone color systems
If you don’t have the need or space in the store to buy an air compressor for painting, you can look into self-contained turbine-style paint gun kits. These have a built in air compressor that produces a very high CFM but has almost no air reserve. A reserve is not required due to the function – the turbine generates the required amount of air as required by sucking it into the system. Most can be stored under a workbench and can easily paint an entire car.
The main disadvantage of painting turbine compressors independently is cost effectiveness. A quality turbine kit can get expensive, and a high-end turbine paint gun kit could cost you almost as much as an air compressor. In the end, you have to decide which system best suits your workplace and project.
If you still have questions about painting or need help choosing an air compressor, feel free to contact our technical team – they can guide you in your decision. You can reach her at 1-800-343-9353 seven days a week. View our full range of air compressors here. For more car painting tips, visit the Eastwood Garage and How-To Center.
Getting Started With Paint Spraying – New Air Compressor \u0026 Spray Gun
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How To Set Up An Air Compressor for Spray Guns & Painting
How to set up an air compressor for spray guns and painting
Does the perfect paint exist? This is the big question for do-it-yourselfers and professionals alike when it comes to spraying paint on the house wall, garden fence or car. If you haven’t already ditched the brush or roller and paint can, the first and pretty big step on this journey is to invest in an air spray gun.
In case you are unfamiliar, spray painting guarantees a much more controlled and even finish to your work than any hand applied brush/roller application, but simply invest in an old spray paint kit and expect it to give you the best results straight away. I won’t take you too far. To avoid misapplication and the dreaded “orange peel” effect, you need the right kit, and that means getting a spray paint compressor that matches the specifications of your spray gun.
Our guide will walk you through everything you need to know about color compressors and the technical delivery items required. Once you know what you’re doing, we’ll tell you about some of the best spray gun and compressor kits available on the SGS website, so you can turn any paint job you undertake in the future into a masterpiece.
What is a pistol compressor?
When we speak of an air compressor for painting, we are not really talking about a specific type of compressor that is solely intended for the painting function, but a suitable air compressor for use with spray guns. Air compressors use a power source to create compressed air in a storage tank, which can then be used for a variety of applications, including spray painting. Different air compressors have different pressure limits and this is where choosing the right compressor comes into play.
Most air paint guns use a “high volume, low pressure” (HVLP) delivery mechanism, so it’s important to find a paint spray compressor that will provide the required pressure and air volume to create a steady flow of paint that will benefit you perfect finish.
What is HVLP?
HVLP spray guns atomize paint coatings using a high volume of air at low air cap pressures, typically at a pressure range about a quarter or less than traditional methods. This means that the material being sprayed has a lower velocity and is therefore less likely to bounce back, increasing the transfer efficiency of your paint. The HVLP process also delivers a much softer spray that reduces material waste. However, they require a higher volume of air than traditional sprayers, which means a larger compressor is required, but more on that below.
What are the requirements of an air compressor for spray painting?
There are three important measurements to consider when spray painting with compressed air. The first is pounds per square inch (PSI), the second is cubic feet per minute (CFM), and the third is the tank size. As you can guess from the “low pressure” part of HVLP delivery, you don’t need a lot of pressure to get the job done, but you still need to make sure you have a high enough PSI to ensure consistent delivery.
The CFM measurement is arguably the most important factor when choosing your compressor. CFM measures the volume of air produced by the compressor per minute and the amount of air the compressor can produce at a given PSI. Your compressor’s CFM rating should be higher than your air spray gun’s CFM requirements, otherwise you risk both pressure drop and volume loss, which are the two main causes of inadequate coverage. As indicated above, the “large volume” element of HVLP spray guns is a big indication that a larger compressor is required for proper use.
Finally, tank size matters when it comes to spray painting, since the operation of the spray gun requires a constant flow of air, rather than an intermittent supply like many other pneumatic tools. Therefore, your compressor must have adequate storage space to keep up with the gun.
How much CFM do I need to spray paint?
Spray gun CFM requirements vary by model, with small spray guns naturally requiring a lower CFM than larger options. While some air spray guns are rated less than 10 CFM, we recommend your compressor is at least 12 CFM for spray painting.
For professionals, this value may need to be higher – the important thing is that you have checked your spray gun’s CFM requirements and selected a compressor that exceeds this value.
What is the best air pressure for spray painting?
Again, it’s important to check your specific model’s recommendations, but your HVLP spray gun will likely range between 25 and 30 PSI if you’re using an air compressor to spray cars, for example, and in some cases will rise to 40 PSI if higher atomization is required.
How to spray paint with an air compressor
Wondering how to use a spray gun with your new compressor? Here’s what you need to get started:
Safety equipment: respirator or mask, goggles and gloves
A suitable air compressor for your spray gun
Hose
Spray gun accessories: filters, regulators, quick disconnects – although you may not need them all depending on your needs.
Here is the process:
Put on your safety gear before you start work
Connect your air spray gun to your air compressor using the hose and other accessories as shown in the image above.
Make sure your compressor is delivering adequate CFM
Mix paint/primer and solvent in the recommended proportions.
Test your ink spray pattern on a piece of cardboard to verify that your compressed air spray is delivering a consistent flow of ink. Most HVLP spray guns allow you to adjust your spray pattern with a knob on the side of the gun.
Apply an even coat of paint to your chosen surface and apply a second coat if needed 12-24 hours later (once the first coat is dry).
Your air spray gun and paint compressor checklist
As we’ve already established, it’s important to ensure you have the sufficient CFM and volume in your compressor tank to get the job done consistently. However, despite all your efforts and preparation, you might find that you still have air pressure issues.
If you are struggling to get the results you want, there is a checklist of things to go through to ensure you are getting the best performance from your spray gun and air line.
How narrow is the air hose?
The hose you are using can be the source of pressure problems if it is too narrow or too long. The inside diameter (ID) of your hose is the measurement to look out for, with a smaller ID meaning there is less air going through the line and therefore less pressure. For example, using a 5/16″ (7.9mm) hose will give you less pressure than a larger diameter 3/8″ (9.5mm) option.
For HVLP spray guns, greater than 1/4″ ID is advisable, with greater than 5/16″ hose required to meet typical HVLP volume requirements. But a word of warning – bigger isn’t always better. Larger can often mean a longer hose, which also needs to be taken into account.
Is the air hose too long?
As compressed air travels through a hose, the pressure decreases further away from the compressor, meaning a long hose can be detrimental to a high-pressure paint gun. As a rule of thumb, it’s best to use as short a hose as possible with a decent width ID.
Quick Disconnects (QDs) – Do you need them?
Quick Disconnects (QDs) are hand-assembled air fittings that allow for quick and easy air line connection and disconnection. They replace traditional mating connectors that often require the use of tools for assembly and disassembly, making them significantly faster to use and providing a significant benefit to the user experience. However, depending on the quantity used and quality of design, QDs can present an obstacle to maintaining air pressure.
Depending on the design and volume requirements of your pressure spray gun, the pressure drop of a QD can range from 1-25 PSI. Therefore, it is important that you choose your QD design carefully and choose the least restrictive unit. Using many air fittings can also cause pressure drop.
A common pressure issue associated with using QD is a small orifice in the female part of the component, where the narrow diameter restricts airflow, just like a small ID hose. When using QDs, be sure to use “high flow” options, which offer the largest practical diameter to minimize pressure losses.
The fundamental question is: Are QDs really necessary? If you only plan on removing your air hose from your spray gun and compressor once or twice a day, the simple answer is no.
Does the air regulator have a high flow and is it of good quality?
Air spray gun regulators provide precise adjustment of airflow and air pressure, ensuring consistent results. However, their design can also restrict airflow and create excessive pressure drop. There are two types of paint gun filter regulators – wall mount and gun mount.
Typically, larger wall mounted regulators are better at maintaining consistent gun air pressure and minimizing the dreaded pressure drop. Your spray gun pressure regulator should be able to direct enough air to keep the spray gun working efficiently and have a capacity greater than the needs of your air spray gun.
To determine if the regulator is too restrictive, compare the operating and non-operating readings of your spray gun regulator to the gauge. The difference between the two readings should be 5 PSI or less.
Although regulators control air pressure, the system can still be subject to fluctuations, particularly when an air adjustment valve type throttle is used. Air exits the air cap with an initial burst of pressure, which then settles to the set pressure, which may vary due to changes in system pressure.
Air Filter, Water Trap, Regulator & Lubricator €23.99 Shop Now Air Filter, Water Trap & Regulator €15.59 Buy Now
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What is the Air Compressor Performance Specification?
The basic requirements of your compressor are that it must deliver adequate clean (oil-free) and dry (water-free) air while being properly sized to meet the air pressure and volume requirements of the entire system. This is important because, as previously mentioned, the limitations of certain QDs, small hose diameter and regulator can all play a factor in reducing pressure, which is why it is necessary to have a spray paint compressor that produces a higher CFM than your HVLP spray gun.
To keep the air clean, all water must be drained from the air tank and the spray gun filters checked to ensure they are spotless and functional. It is also recommended to install a final air filter on the gun itself. To learn more about the different specifications of air filter setups, read our air compressor buying guide here.
Spray Gun Kits
6L Air Compressor and Spray Gun Kit If you are new to the world of paint spraying, we recommend starting with our ready-to-use, oil-free 6L Air Compressor and Spray Gun Kit. The kit comes complete with a professional grade air spray gun, spray gun regulator, 10m hose and spray gun cleaning kit and Euro quick couplers. An ideal entry-level option for anyone looking for a lightweight device for the occasional small DIY project at home. Buy Now 24 Liter Air Compressor and Spray Gun Kit Second, our powerful 24 liter, 9.6 CFM compressor comes fully equipped with a professional gravity feed HVLP spray gun, 10m rubber air hose, spray gun regulator with gauge, mini -Air filter and water trap and 2 quick couplers. Another great choice for anyone new to spray painting, the kit offers an excellent combination of performance, safety and value. Shopping now
50L Air Compressor and Spray Gun Kit Our 50L high flow reciprocating air compressor has the capacity and power to ensure you get fantastic results every time. The compressor features a large 50 liter tank making this kit a top contender for serious enthusiasts and semi-professional sprayers. The kit offers great bang for your buck and comes complete with a HVLP professional gravity feed spray gun, 10m 6mm rubber hose with quick disconnects, mini air filter and 1 liter compressor oil. To get you started, our compressor spray gun guide has all the information you need to get started. Buy Now 100 liter Air Compressor and Spray Gun Kit Finally, our heavy duty 100 liter Air Compressor and Spray Gun Kit gives you everything you need to quickly and efficiently complete any spray painting job you want to do. The 100L Air Compressor Kit comes complete with an HVLP gravity feed spray gun, two 6m rubber hoses with quick disconnects, a spray gun filter, water trap, regulator and lubricator, Euro quick disconnects, a mini air filter and 1 litre AC 2068 compressor oil supplied. All this makes this kit the best choice for regular and semi-professional sprayers. Shopping now
cleaning
Do not forget; No matter what size or type of spray gun and air compressor you have, it is important to keep them clean to prevent clogs and ensure optimal performance. With that in mind, we recommend one of our quality spray gun cleaning kits, which provide you with everything you need to maintain your spray gun and compressor between uses with minimal fuss. The kit contains eight key parts that are designed to last and provide the best possible results.
Still need help?
How To Use A Paint Sprayer Connected To An Air Compressor
Painting any type of room or building can be a difficult process if you only use paint rollers. You can’t cover much space with casters, and the casters can leave marks on walls. Using an air compressor and a paint sprayer can help you cover more space at once and ensure you get an even coat of paint on your surface. Follow the tips below for using a paint sprayer connected to an air compressor to achieve a professional finish.
preparation for painting
Before you start painting, you need to get a few things in order. First choose the right type of paint and paint thinner. Many sprayers work best with oil-based paints, but latex and acrylic paints can also be used. You should also choose a good paint thinner. Mixing your paint with the correct thinner allows more paint to spray out of the sprayer and ultimately helps your finish look better.
Mask off any adjacent surfaces and areas you don’t want to damage with paint. You should also cover all furniture, floors, and any other materials that you don’t want paint to ruin with drop cloths. Also, make sure you have a safe, flat surface to rest your paint on to prevent spills. Always wear a mask, goggles and gloves to protect against harmful fumes and particles.
Next you need to sand your paint surface to remove any imperfections. You will also need to use a vacuum cleaner cloth to remove sanding residue from the surface to be painted.
Choosing the right painting tools
Once your painting area is ready to go, you can start painting using an air compressor and paint sprayer. You have many choices with paint sprayers, so make sure you choose the one that works best for you and your job.
One option is a suction gun. This gun has a hopper hanging under the gun body. Many people think of these types of guns when they picture paint spray guns. However, suction guns are not as efficient as you might think. They require higher air pressure and do not cover a large area when in use. You need to spend more time painting when using suction gun. However, if the area you are painting is small, a vacuum gun may be a good option for you.
The gravity gun is similar to the siphon gun in that it also stores paint in a reservoir, but a gravity gun’s reservoir is attached to the top of the gun body instead of the bottom. This gun requires less air pressure because the paint flows into the gun body by gravity. You’ll find that this tool works better in small spaces and is easier to use after you get used to how it works. The only downside is that you need a special stand to refill the paint canister.
Another type of gun is a pressure gun. This gun has a pressure pot that is connected to the gun by two hoses. One hose supplies air to atomize the paint and the other supplies the paint to the gun. Because this gun has hoses that can vary in length, it is typically the most efficient gun type for painting jobs.
Start painting now…
After choosing the right paint sprayer for your job, you can start painting. You can connect the spray gun to the air hose and activate the trigger lock by squeezing it. Make sure all hoses are connected to the appropriate outlets and plug all power cords into an outlet.
After your gear is ready to go, you can turn on the weapon. Set the PSI for the correct air pressure, then test your paint flow on a piece of paper before beginning your walls. You can continue to adjust all of the settings on your gun until you get the right flow and pressure for your paint job. When spraying, make sure you hold the gun about 6 to 10 inches from the surface to be painted and move the gun in a smooth, sweeping motion to avoid dripping or running paint.
Painting can seem like a chore, but getting the job done with a paint sprayer and an air compressor makes the job easier. Any painting you do can turn out professional, even if you follow the tips and guidelines above.
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What kind of paint gun and air compressor should I use?
What type of paint gun and air compressor should I use?
How to get the right spray configuration
Any spray gun can give you good results if it has the correct fluid tip size. The recommended tip size for the paint or primer you are using can be found on the relevant product data sheet. Larger point sizes are used with thicker material such as primers. They create less overspray but more texture. Smaller tip sizes are used with thinner materials and can give you a smoother look.
The size in millimeters is usually marked on the tip of the liquid.
The table below shows the recommended tip size ranges for gravity guns.
Product Peak Size Range Touch Up/Small Parts 0.8-1.1mm Clear Coat 1.2-1.4mm Base Coat 1.3-1.5mm Primer 1.4-1.8mm Polyester Spray Filler 2.0mm+
Note: Tip size recommendations can always be found in the product data sheet for your paint or primer.
Paint Gun Feed styles
Gravity Feed Guns are the most popular style of painting cars. They use less air and paint than fume guns and can paint with very little texture.
Siphon Feed Guns can spray a paint job with very little texture, but they use a lot more paint and air to do so.
Pressure guns are typically used for thick paint where appearance is not a primary consideration. They use up the least paint and air, but can add a lot of texture.
What does HVLP mean?
Any feed style can be an HVLP Paint Gun. HVLP stands for High Volume, Low Pressure. These guns produce less overspray. That means more paint gets on the car. The downside is that they use more CFM (cubic feet per minute) of air compared to non-HVLP paint guns. Both work well when matched to the correct size compressor.
Suitable for your spray gun and your compressor
For small projects or single panels, your air compressor should be rated at 100% of the CFM required by your paint gun. If you’re spraying an entire car, you need 150-200%. For example:
A 15-20 CFM air compressor pairs well with a 10 CFM paint gun.
A 6-8 CFM air compressor pairs well with a 4 CFM paint gun.
Compressors with lower CFM ratings cannot maintain constant pressure. This results in textures and runs.
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