Top 12 How Long To Let Spray Paint Dry Before Sanding 28233 People Liked This Answer

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Spray paints need roughly 30 minutes before you can execute wet sanding.SAND IF NECESSARY

Just wait till the paint is dry and lightly sand it with a fine grit sanding block to smooth it over. Paint over it again and you should be good to go!Spray paint typically has a sheen that, when dry, reflects light and emphasizes any surface imperfections, including scratches, dents and nicks. So, before spraying on the final coat of paint, you must sand the surface smooth and then apply at least two primer coats. And be sure to sand between each coat.

Contents

How soon can you sand after spray painting?

SAND IF NECESSARY

Just wait till the paint is dry and lightly sand it with a fine grit sanding block to smooth it over. Paint over it again and you should be good to go!

Should you sand between coats of spray paint?

Spray paint typically has a sheen that, when dry, reflects light and emphasizes any surface imperfections, including scratches, dents and nicks. So, before spraying on the final coat of paint, you must sand the surface smooth and then apply at least two primer coats. And be sure to sand between each coat.

How long does paint need to dry before wet sanding?

Also, it’s recommended to wait about one month after the paint job is completed before sanding. That’s the best way to ensure the paint is fully cured.

How long should I let spray paint dry?

In general, spray paint takes at least a few hours to dry thoroughly. You can handle and re-coat the pain after a few hours. However, some brands take much longer to fully cure. You may need to wait 24 hours or more for the paint to fully cure.

How do you fix bumpy spray paint?

Repair “blobs” due to lumpy paint. Old, clotted paint and dirty spray nozzles can cause this issue. Simply sand the area smooth before reapplying paint. Mix paint thoroughly before using and clean spray nozzles properly after using to make spray paint blobs a problem of the past.

Does rustoleum need to be sanded between coats?

To do so, simply wait until the first Top Coat is dry to the touch (1-2 hours) before applying the second Top Coat. We recommend the second coat to be applied within 24 hours of the first. If you choose to recoat after 24 hours and before 7 days we recommend sanding the floor before you recoat.

How long should spray paint dry between coats?

If the temps are optimal between 65- 85 degrees you can re-coat about every 5 minutes as long as you are applying light even coats. If the item is two sided, let the first side dry to the touch, then flip and paint. It should dry to touch in 30 minutes, to handle – 1- 2 hours, and be fully dry in 24 hours.

Can you wet sand and buff Rustoleum spray paint?

Light wet sanding with 600 grit sandpaper is recommended. The freshly coated surface can be buffed with wax or polish after one week.

How do you know when spray paint is dry?

3. Hard Dry. At this stage, the paint is dry, but you cannot apply any pressure on it. Putting pressure will leave your fingerprints on the color although the paint is no longer sticky enough to get on the finger itself.

How long does Rustoleum spray paint take to cure?

DRY AND RECOAT TIMES

Allow more time at cooler temperatures. Dries tack free in 2-4 hours, to handle in 5-9 hours and fully dry in 24 hours.

Can you wet sand and buff Rustoleum spray paint?

Light wet sanding with 600 grit sandpaper is recommended. The freshly coated surface can be buffed with wax or polish after one week.

How do you sand clear coat after painting?

How to Sand a Clear Coat Without Sanding the Paint

Soak a sheet of 1200-grit wet/dry sandpaper in water for 10 minutes. …
Remove the sandpaper from the water and wrap it around a sanding block. …
Sand by applying a firm, steady pressure to the sanding block and moving in straight lines so you can see the sanding scratches.

Why does spray paint crackle on second coat?

Cracking or webbing normally appears when there is a paint reaction or if the first coat of paint hasn’t dried before the second coat is applied (regardless whether its primer, base coat or topcoat). This leaves a crackled effect on the top surface, or sometimes hairline cracks can appear reminiscent to a spider web.

How long should you wait between coats of paint

THE ART OF SPRAY PAINTING – HOW TO GET A SMOOTH FINISH WITHOUT ANY DRIPS | Nadine Stay

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Table of Contents:

SHAKEMIX PAINT & TEST SPRAY

DON’T START OR STOP SPRAYING DIRECTLY ONTO THE OBJECT

DON’T SPRAY TOO CLOSE & KEEP IT THIN

WIPE THE NOZZLE

SAND IF NECESSARY

WANT TO KNOW EXACTLY WHEN I POST A NEW BLOG

THE ART OF SPRAY PAINTING - HOW TO GET A SMOOTH FINISH WITHOUT ANY DRIPS | Nadine Stay — THE ART OF SPRAY PAINTING – HOW TO GET A SMOOTH FINISH WITHOUT ANY DRIPS | Nadine Stay

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How To Spray Paint | Spray Painting Tips

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How to Wet Sand and Polish New Paint for a Show-Perfect Shine.

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Table of Contents:

How Long to Let Spray Paint Dry on Wood

How Long to Let Spray Paint Dry on Metal

How Long to Let Spray Paint Dry on Plastic

How Long For Spray Paint to Dry on Furniture

How Long to Let Spray Paint Dry Between Coats

How Long To Wait Before Sanding After Spray Painting

How Long to Let Spray Paint Dry Before Wet Sanding

Before Clear Coat

Before applying Polyurethane

Before applying Lacquer

Before Taping

Before Removing Tape

How Long to Let Primer Dry Before Spray Painting

Can You Dry Spray Paint With a Hair Dryer

Why Is My Spray Paint Not Drying

Does Spray Paint Dry in the Cold

Best Temperature For Spray Paint to Dry

Does Spray Paint Dry Faster In The Sun

Why Is My Spray Paint Sticky After Drying

How Do You Fix Sticky Spray Paint On Wood

Will Tacky Paint Eventually Dry

When Can I Wash My Car After a Paint Job

Rustoleum Spray Paint drying time

Crayola Spray Paint drying time

Hammerite Spray Paint drying time

Hello Practical!

How Long Does It Take Spray Paint to Dry? (Wood,Metal,Plastic)

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Table of Contents:

How long before you can sand rustoleum

When should you sand spray paint

How soon can you recoat rustoleum

What’s better Krylon or Rustoleum

How many coats of spray paint is too much

Should I sand between coats of Rustoleum

Why did second coat of spray paint wrinkle

Does rustoleum need a top coat

Should I sand between coats of spray paint

How long does it take Rustoleum spray paint to cure

Do you need primer with Rustoleum spray paint

Does rustoleum ever Harden

When can I apply a second coat of Rustoleum

How soon can I wet sand enamel paint

How Long Before You Can Wet Sand Spray Paint?

Nowadays, homeowners and DIYers have abandoned painting manually in favor of spray painting their projects. More often than not, bristle brushes and rollers won’t bring to life your project as spray painting does, and considering that spray paints are highly versatile, you can utilize them on various surfaces. However, for a smooth finish, you should wet sand your spray paint. So, how long before you can wet sand spray paint?

From my experience, the period differs based on the type of paint. But the recommended duration is roughly 30 minutes.

Keep reading for more insight on spray paints and wet sanding.

How Long Should Paint Dry Before Wet Sanding?

Any painting job can enhance your project’s new look. However, you need to wet sand your project to give it a masterly finish.

Despite the process being time-consuming, you will surely like the outcome. In the process, you will not want to ruin the topcoat. Therefore, don’t sand too deep to avoid repainting your project. Sanding too hard merely adds to the cost since you will need more paint to recoat.

After you apply the initial coat, give your project ample time to dry to reveal the rough patches. Usually, the drying time is set between 12 to 24 hours.

Allowing the surface to sit overnight will help for complete dryness. After the duration, as mentioned earlier, you can now wet sand your surface for the typical options.

If necessary, add a touch of dish detergent to keep the abrasive papers free from clogging.

Tip: Use 600 t0 1500 grit sandpaper for demanding results.

How Long Should Rustoleum Spray Dry Before Sanding?

Sanding Rustoleum spray makes your painting surface attain a fine finish without scarring the surface. However, you may fail to achieve your desired results if you decide to rush before the drying time is due.

Once you apply Rustoleum, give it enough time to cure before sanding. Usually, at least one week is enough. Remember, the surface needs to dry entirely to reap the best results.

Tip: There is no need to sand between coats of Rustoleum spray. However, if the surface reveals any deformities, then you can sand.

Still, you will want to use a good sanding tool. Never try to wet sand Rustoleum with an electric sander. The reason being, water, and electricity don’t blend. Suppose you give it a try; you will have to pay for it since electricity doesn’t forgive carelessness.

Can You Wet Sand Paint Before a Clear Coat?

The essence of applying a clear coat on any painted surface is to offer it enhanced protection. However, can you wet sand paint before a clear coat?

Yes, you can wet sand paint before a clear coat to make the surface unwrinkled. This step is integral for most painting projects.

Suppose you wet sand your paint; remember to clean it with soap and water. Next, take your clear coat and spray.

Given that a clear coat excels well on smooth surfaces avoid scuffing the base beforehand. Doing this promotes better adherence to the painted surface.

Note: The clear coat needs good maintenance. To execute this, avoid waxing it for nearly 30 days. That gives the chemicals ample time to dry and evaporate entirely.

If the chemicals fail to evaporate, they can bring about bubbles in the paint. For this reason, the painting and sanding you did will be pointless.

Do You Wet Sand a Car After Painting?

The most rewarding form of paint correction for your car is wet sanding it. If done properly, wet sanding your car can leave a smooth surface that’s indeed impressive.

Before wet sanding your car, ensure that you acquire a spray bottle that distributes a misty spray pattern. Such bottles give you the flexibility to sand with one hand exactly when saturating your work surface.

In addition, you will similarly need good sandpapers rated for the job at hand.

It’s wise to execute the sanding task outdoors. For this reason, you will avoid the running water with tiny whiffs of paint from staining the floor. If left unattended on time, this can lead to strenuous clean-up once the water dries.

Suppose you own a garage with a proper drainage system; you can conduct your sanding projects inside. With all the basic supplies at hand, feel free to send your projects.

To begin, use 1000 grit sandpaper to wet sand your car. As opposed to other sanding methods, this one involves back and forth movements. Even so, you must be careful not to exert much pressure on the sandpaper.

While sanding, you will want to move back and forth in one area as you add water often. After that, repeat the process with another sandpaper grit. Then thoroughly rinse the entire car to peel off the lingering sanding dust.

When Can You Wet Sand Single Stage Paint?

Single-stage paint can be wet sanded. Nonetheless, wet sanding single-stage paints pose the risk of losing UV protection. And that’s because the clear coat is embedded into the paint.

Therefore, before wet sanding single-stage paints, ensure you confer with the manufacturer.

The approved duration for wet sanding single-stage paint is after 24 hours. You will need to choose a single-stage paint that encompasses a hardener. Such paints are bound to dry shortly and enable sanding to be more effortless.

Suppose you decide to wet sand single-stage paint; make sure your color is not metallic. If you wet sand metallic color, you will distort the existing finish.

I suggest you use 1000 grit sandpaper. Despite taking up much of your time, it restricts deeper scratches. Furthermore, it lessens the amount of paint you will peel off. You will need to sand it to a point the entire orange peel is discarded. Then decide whether you want to continue buffing it or not.

How Many Coats of Spray Paint is Too Much?

As a general rule, you should use two to three coats of spray paint. The coats, as mentioned above, are enough for full coverage. However, this rule has exceptions depending on the color, surface, and integrity of the paint you use.

It costs more to apply three or more coats on your surface. But the coat will endure three to five times longer than a single coat.

You don’t have to apply thick coats of spray paint as your surface will inevitably crack. Two to three light coats are better, unlike one heavy layer. Even better, try to get all the coats applied in less than an hour.

Tip: Merely, two to three coats will work best. Adding more than four coats can result in bubbles and cracking on the surface.

Should I Sand Between Spray Paint Coats?

Spray painting surfaces can be a strenuous task, primarily if you don’t know how to apply smooth coats. As such, lack of prior experience will likely result in drops, runs, and eventually imperfections.

Ideally, spray paints have a sheen that emphasizes the surface deformities such as dents when dry. That tells you that before spraying the last coat of paint, you need to sand the surface.

After sanding, apply at least two coats of primer. In the process, you will need to sand between each coat for consistent results.

It’s better to apply the primer before sanding any surface; for instance, applying primer in woods before sanding raises the wood’s grain. And as such, it brings about a rough-textured surface.

Tip: Suppose your last coat looks fine; you don’t have to sand between coats. Instead, just proceed with the paint job.

Why is My Spray Paint Patchy?

There exist several aspects that make spray paint patchy after applying it. Before applying your spray paint, make sure you shake the bottle thoroughly for the components to bind evenly.

Even when applying the spray paint, it’s good to shake the can periodically. It takes fewer coats to attain even coverage. But be sure to stay for a while for the paint to dry, so you avoid forming pooling and patches.

Spray paint can result in a great loss, primarily if you don’t get it right. The other reason your spray paint is patchy is due to over spraying in one part. You can evade this by doing smooth and even sprays and avoid overlapping.

The above consistency prevents the paint from dripping and building up with time. Drips can be strenuous to handle, so it’s better to stop them from occurring.

Also, spraying during extreme weather can promote your spray paint to be patchy. Extreme temperatures can inflict crackles in your paint as it dries.

And since you will not want to experience that, it’s better to warm up your workspace after painting. Not to mention, you should also watch out for your spraying distance. Spraying from a close range can cause drips, while far away can result in a dotty surface.

Ideally, keeping a 12″ distance is ideal with spray paints. If in doubt, you can certify the spray distance printed at the back of the can.

Precautions to Prevent Spray Paint from Being Patchy

There are several things you need to comply with to avoid forming patches on your painted surface. Find out more in the guidelines below:

Ensure you utilize the recommended spray gun or can of spray paint. Also, you should opt for the right paint rated for a specific material or surface.

Before applying the paint, make certain that you mount the spray gun precisely.

Begin by cleaning up the surface you intend to paint. You can perform this by wiping off dust and debris.

Practice thinning your paint to obtain your desired outcome.

Tips on How to Fix Uneven Spray Paint

To fix uneven spray paint, you will either need a spray can or a spray gun. Other supplies to keep at hand include;

New paint.

Respirator.

Cardboard.

Sanding block.

Alcohol.

Wire brush.

Trisodium phosphate.

Dropcloth.

Step 1

First, surface preparation will set you ready for the job. It’s interesting to know that surface prep varies based on the surface you are handling. For instance:

Metal surface

For metal surfaces, take your moist rag and clean the particles across the surface.

Then use a wire brush to scuff off the rust build-up on the surface.

In case of any loose paint, use a recommended fine-grit sandpaper to remove it from the surface.

Plastic Surface

Use a clean rag to remove the dirt on the surface.

Wet sand the surface gently to peel off loose materials.

Use alcohol to wipe down potential oils found on the surface.

Wood Surface

With wood surfaces, using TSP will aid in peeling off paint coats that are already used.

Create a smooth surface by sanding with either rough grit or fine-grit sandpaper.

Step 2

The next step is to use the control knob on the spray gun to adjust pressure. Check for the pattern smoothness by first adjusting the gun to the low-pressure setting. And after that, try its effectiveness by spraying on a specific surface.

Tip: Suppose you come across gaps in your pattern, raise the spray gun’s pressure to a point you achieve a full pattern.

Step 3

In the third step, you will want to keep a good painting distance. The distance oscillates based on the type of spray gun you use.

For instance, an HVLP spray gun calls for a 6 to 8 inches spraying distance. In contrast, conventional guns need an 8 to 10-inch distance while spraying paint.

Step 4

Positioning yourself well can result in a good paint job. So rather than moving your wrist when painting, you will have to move the entire arm horizontally. Still, the spray should remain perpendicular to the material you are working on.

Step 5

When recoating your surface, avoid spraying directly at the targeted surface. Instead, it’s wise to start by spraying the surface sides as you glide your arms towards the main area.

Similarly, continue gliding and spraying towards the edges to deter excess build-up. You may also want to do it in a straight line for even coverage.

Step 6

You can never count on your paint job if you have not done the final check-up and touch-ups. Take your time to examine any potential imperfections. If any, fix them up using fine-grit sandpaper to scuff the paint smooth. And then follow with reapplying the last coat once more.

How Many Layers of Clear Coats Should I Apply?

A clear coat is a protective coating that goes over your painted surface to help it endure heavy use. And not to forget, it also protects your surface from harsh UV rays. In addition, clear coats also provide a rustic and glossy finish to surfaces. As such, it allows you to buff out any defects effortlessly.

Ideally, aim for 2 to 4 coats of clear coat to reap the most out of your surface. Suppose you apply various coats; I suggest you begin with light coats. By doing so, you will avoid shrinkage that brings about cracks on the surface. Ensure you don’t smear excess coats, or else you will have an uneven finish.

Can You Use Too Many Clear Coats?

Too many clear coats can make your painted surface go rough. Also, thick coats will amplify this fallout and look unimpressive after the close of your paint job.

How Long After the Base Coat Can I Wet Sand?

The estimated duration of wet sanding the base coat is dependent on a myriad of factors. They include the type of chemicals and the temp during the drying time.

Usually, it takes up to 4 to 5 hours to wet sand the base coat after spraying. But if your project is exposed to a heat source, you can reduce the time by half.

It will help if you wet sand early since most base coats products are bound to crumple if they stay long before repainting.

How Long Can You Wait Between Base Coat and Clear Coat?

The duration between base coat and clear coat fluctuates depending on the manufacturer. It can range from 10 to 30 minutes. However, if the temp and humidity are not conducive, the duration might extend to nearly an hour.

You can determine if the base coat is dry to touch by using your fingers to test the smoothness. If you touch the coat and your fingers don’t stick on it, then it’s ready for clear coating.

Never surpass a day before clear coating. Waiting for so long will make the base coat dry excessively. And this will give the clear coat a difficult time to hold upon it.

People also ask, can you sand the base coat before applying a clear coat? Indeed you can permit the base to dry enough and sand before adding a clear coat.

Why is My Clear Coat Cracking

There are various reasons clear coats begin to crack shortly after being applied. One of the prime reasons is environmental conditions. You will note that too much heat and humidity amid curing may result in deformities like cracking. Similarly, spraying too many clear coats can make the coats harden and eventually crack.

Can Single Stage Paints be Clear Coated?

Yes, you can clear coat single stage paints. However, you need to wet sand the surface well to enhance better adhesion.

Can I Apply a Clear Coat Over Old Paint?

Suppose the existing paint is in good condition; you can apply your clear coat on it. To begin, you will want to wash down the old clear coat with a grease remover and wax. Then follow with sanding it using 600 or 800 sandpaper.

After that, apply two to three coats of clear coat. And don’t forget to follow the brand’s dry time in between coats.

After finishing your job, check for any defects such as runs. If any, confer with the manufacturer to know how long the drying time is before retouching the affected parts.

Why Does My Second Coat of Spray Paint Wrinkle?

A good sprayed-on paint surface results from thorough preparation, patience, and light coats of paints. Suppose you rush any of the steps mentioned above; the expected glossy finish will languish into a wrinkled mess. If it so happens, you must rush to peel off the paint and repaint your surface properly.

In this guide, we take a plunge into the causes of spray paint wrinkling after the second coat.

Heavy Coat

The good thing with spray paints is that applying them is effortless. You don’t have to poke around searching for brushes and open cans that can tip mistakenly. You might be persuaded to let out a heavy coat of paint due to the convenience of a spray paint bottle. But that’s not a good way of applying it.

As an alternative, you should apply spray paints in multiple thin coats. And not to forget, each coat should dry entirely before proceeding to the next coat. If you go ahead to apply a heavy coat, the paint’s weight will exceed the ordinary and eventually wrinkle as it dries.

Insufficient Dry Time

If you don’t permit your initial coat to dry before applying the next one, wrinkling is ineludible. As a result, the drying agents in the second coat will compromise the hard surface of the initial coat. And that will modify it into an unstable surface. In this event, the topcoat crinkles since it forfeits adhesion to the gadget’s surface.

Surface Contamination

Surface contamination can inflict wrinkles on sprayed-on paint. Usually, spray paint dries well on a clean and well-arranged surface. If there is any residue left out during prep, it can cause the spray paint to wrinkle as it dries. You need to wipe out the paint, clean the surface, and later repaint it in such instances.

Incompatible Products

Paint formulations alter with different paints. Since not all products are compatible, ensure the primers, clear coats, and base coats you use are crafted to work jointly.

Why Does Spray Paint Crackle on Second Coat

Spray paint crackles due to high or low temp. Also, it may crackle due to painting too heavy coats at one go. Too heavy coats cause the topcoat to dry, whereas the paint underneath is still wet. As such, the paint underneath moves to cause the coat to crack.

When in hot surroundings, the components in the paint evaporate, and that leads to cracks. At the same time, low temps impact how the paint holds up to the surface.

What Is the Best PSI to Spray Clear Coat?

Clearcoat requires adequate PSI for a better flow out. To be precise, 28 to 29 PSI is best when it comes to a clear coat.

How to Fix a Spray Paint Can That is Not Working

All DIYers who use spray can affirm that the cans often block with time. What happens when you constantly use the spray can daily. So to bring your spray can back to life, you only need to remove the blockage. You can achieve that by using the following ideas:

Shake the Can Before Use

Most spray can have instructions printed at the back. So be sure to sift through the instructions before spray painting. A common instruction is to shake paint in the can well before you commence painting.

Carry the Can Upside Down

You may want to hold the can upside down to prevent blockage. In this position, the pressure will get back to normal and allow you to spray as usual.

Clean the Nozzle

If the solutions mentioned above fail to deliver, you can decide to give the nozzle a thorough cleaning. You can perform this gently by placing the nozzle to a solution of lacquer cleaner.

Final Thoughts

Rough scratches usually degrade the dream of achieving a smooth sprayed-on surface. But fortunately, you can address this issue by wet sanding the spray paint. By doing so, the surface being abraded gets lubricated, thus peeling off any scratches. In the process, the water drives out finish particles to prevent the sandpaper from building up.

Remember that wet sanding trends should be back and forth. Better still, you will need to avoid putting out much hand pressure, as it can influence uneven sanding. But the lingering question is…

How Long Before You Can Wet Sand Spray Paint?

Spray paints need roughly 30 minutes before you can execute wet sanding. But there can be a variation depending on the type of spray paint used.

Hopefully, you have enjoyed this post. But if you still want further details, drop your suggestions down below in the comment section, and we will respond to you shortly.

THE ART OF SPRAY PAINTING – HOW TO GET A SMOOTH FINISH WITHOUT ANY DRIPS

About 3 years ago I started spray painting my projects instead of using a brush and I will never go back! One coat coverage with spray paint is phenomenally better than one coat with a brush and not to mention you don’t see brush strokes either. Plus an average paint project with a brush used to take me 4-6 hours (including dry time); but with spray paint I cut that down to 1 1/2 hours (including dry time).

Lately I’ve had several people mention to me that they just cannot seem to spray paint anything without getting drips. I get it! I used to struggle with getting a flawless finish but after several years of practice, I’ve learned a few tricks along the way. So if you’re struggling with drips or if you’re just not able to get a smooth finish, I’m sharing the biggest mistakes I see and some tips on how to get a perfect finish.

(NOTE: We’re using a spray can for this illustration but these tips apply to paint sprayers too!)

SHAKE/MIX PAINT & TEST SPRAY

10 Smart Spray Painting Tips for a Great-Looking Paint Job

There’s no quicker, more convenient way to paint small- to medium-size parts and projects than with spray paint. The challenge is how do you apply a smooth, even coat of paint without runs, drips and errors? Spraying paint is deceivingly simple to do, but difficult to perfect. Practice and experience certainly helps, but there are also several techniques that’ll help you spray paint like a pro.

Here, are our top 10 spray painting tips:

Start Smooth, Finish Smooth

Spray paint typically has a sheen that, when dry, reflects light and emphasizes any surface imperfections, including scratches, dents and nicks. So, before spraying on the final coat of paint, you must sand the surface smooth and then apply at least two primer coats. And be sure to sand between each coat. You can brush on the primer, but spray primer is much quicker.

Applying a primer and then sanding is especially important when spray-painting wood because the first coat of primer will raise the wood’s grain, creating a fuzzy, rough-textured surface. Sanding the primer with very fine sandpaper—180-or 220-grit—will knock down the raised grain and leave behind a smooth surface for the next primer coat, and then finally the paint topcoat.

You can use an orbital finishing sander, but hand sanding with a sanding block wrapped in sandpaper is just as effective. If you don’t want to buy a sanding block, make one from a short length of 1×3 or 1×4. And after sanding, be sure to use a tack cloth to remove any sanding dust before applying the next coat of primer or paint. Remember, the key to a smooth finished coat of spray paint is starting with a sanded-smooth, primed surface.

Popular Mechanics

Spin Painting

A simple, yet effective way to spray paint smaller items is to put them on a lazy Susan turntable, which you can buy for as little as $6. Then slowly rotate the turntable as you spray on the paint. Just be sure to keep the can at a consistent distance from the piece to avoid drips.

Fast Finishing of Small Parts

To spray paint small fasteners, such as screws, nails, bolts, cup hooks and screw eyes, try this trick: Stick them into a sheet of cardboard. Stand the cardboard up—preferably outside—and then spray on the paint.

For Bigger Projects, Use a Big Dropcloth

To capture overspray when spray painting larger projects, don’t waste time taping together sheets of newspaper; they’ll only rip and fall apart as you paint. Instead, spread out a large plastic or, better yet, canvas drop cloth. That’ll provide plenty of protection from overspray as you apply the paint.

Do a Spray-Pattern Test

Before spray-painting the workpiece, shake the can until you hear the mixing ball inside bouncing around. Then shake well for at least 90 seconds. Now, and this is important, test the can’s spray pattern by spraying some paint onto a large piece of cardboard or scrap plywood. Once you see the spray pattern, you can adjust your technique and determine how far away from the workpiece you must hold the can.

Also, when spray-painting large or long items, start spraying an inch or so off the near edge of the piece, and continue spraying all the way across and off the far edge. Stay a consistent distance from the piece and hold the can parallel to the surface, don’t sweep your arm back in forth in an arc.

Use Tough Paint for Demanding Jobs

When you need a high-gloss coating that resists rust and chemicals, take a tip from the auto-body industry and step up to a 2K (two-component) spray paint. Like epoxy, the resin and solvents stay separate until you’re ready to paint.

Clean and Prep

Another great crossover from the auto-body industry is rubbing compound that cleans and abrades the surface at the same time. It’s great for buffing out scratches, but can also be used to prep the surface prior to spray painting. Just be sure to clean off any compound residue before painting.

Hide Knots with Shellac

To prevent sticky, resinous tree knots from bleeding through a topcoat of paint or varnish, spray on a coating of clear shellac or a white primer that contains shellac. (Shellac is a natural resin that’s secreted by female lac bugs in Southeast Asia.) It does an excellent job of sealing tree knots and also locking in odors and stains.

Hide Grain With a High-Build Primer

Rough, grainy textures in wood tend to show through most spray paints, leaving you with a textured surface that still looks not-quite finished. If you’re painting something like fir plywood, use high-build primers, which are often labeled: filler and sandable primers. They’re thicker, but still dry rapidly, so that you can apply multiple coats in a relatively short period of time. If you really want to cover up the grain, use a thick spray-on coating such as Plasti Dip, which is an aerosol rubber coating.

Add a Handle for Better Spraying

If you’ve got a lot of spray-painting to do, or are spraying a large project, consider using a spray-can tool, such as the Can-Gun 1. This cleverly designed accessory is a pistol-grip handle that clips onto a spray-paint can. Once attached, it provides a much more comfortable, natural way to spray paint, and it eliminates finger fatigue and cramping.

Roy Berendsohn Senior Home Editor Roy Berendsohn has worked for more than 25 years at Popular Mechanics, where he has written on carpentry, masonry, painting, plumbing, electrical, woodworking, blacksmithing, welding, lawn care, chainsaw use, and outdoor power equipment. Joseph Truini Joe is a former carpenter and cabinetmaker who writes extensively about remodeling, woodworking, and tool techniques.

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