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d여기에서 Sag resistance ASTM D4400 [Paint Testing] – leneta anti sag meter 주제에 대한 세부정보를 참조하세요
Sag resistance of paints using a multinotch applicator according to ASTM D4400
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Leneta Anti-Sag Meter and Sag and Leveling Test Chart
Leneta Anti-Sag Meter and Sag and Leveling Test Chart … This is a drawdown blade with a series of notches of successively higher clearance. The notch clearance …
Source: www.leneta.com
Date Published: 3/7/2021
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Leneta Anti-Sag Meter – Van Nang VN
Leneta Anti-Sag Meter … Giấy kiểm tra độ phủ có seal/Không seal. Thước kéo . Để biết thêm thông tin xin vui lòng liên hệ số điện thoại: 080 3811 9558 – Nhấn số …
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Date Published: 9/16/2022
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Leneta Anti-Sag Meter
Leneta Anti-Sag Meter. This is a drawdown blade with a series of notches of successively higher clearance. The notch clearance is related to.
Source: irp.cdn-website.com
Date Published: 10/12/2022
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Vintage LENETA Multinotch Anti-Sag Meter Test for … – eBay
The higher the Anti-sag index the better the sag resistance of the … Vintage LENETA Multinotch Anti-Sag Meter Test for Sag Resistance of paint in box.
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Date Published: 10/18/2022
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Item ASM-4, Leneta Anti-Sag Meter
Item ASM-4, Leneta Anti-Sag Meter. Used in ASTM D4400, Test Method for Sag Resistance of Paints. This is a drawdown blade with a series of notches of …
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Date Published: 6/8/2022
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Leneta Instruments – Gardco
The Leneta Anti-Sag Meter · Note the notch numbers marked on the Anti-Sag Meter and Identify the corresponding · Ignore the leading and trailing edges, and …
Source: gardco.com
Date Published: 7/3/2021
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Leneta Anti Sag meter 4 – YUMPU Publishing
Leneta Anti Sag meter. 4 – 24 mils. (100 – 600 µm). SAGGING ASTM D 4400. Good sag. resistance. (24mils). Sagging.
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Date Published: 4/23/2021
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Leneta – for Quality, Selection, Service
Wet film thickness is about half of the clearance. Anti-Sag Meters Available From Stock. Sag and Leveling Test Chart. This form was designed for use with the …
Source: www.developmentpc.gr
Date Published: 12/28/2022
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Paint Test Chart, Sag and Leveling – Thomas Scientific
This form was designed for use with the Leneta Anti-Sag Meter and finds additional use with the Leneta Leveling Test Blade. Its special characteristic is …
Source: www.thomassci.com
Date Published: 2/6/2022
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주제와 관련된 더 많은 사진을 참조하십시오 Sag resistance ASTM D4400 [Paint Testing]. 댓글에서 더 많은 관련 이미지를 보거나 필요한 경우 더 많은 관련 기사를 볼 수 있습니다.
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주제에 대한 기사 평가 leneta anti sag meter
- Author: Spektrochem Paint Technical Center
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- Date Published: 2020. 6. 4.
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Leneta
Used in ASTM D4400, Test Method for Sag Resistance of Paints
This is a drawdown blade with a series of notches of successively higher clearance. The notch clearance is related to the degree of sagging and provides a numerical value referred to as the Anti-Sag Index. The higher the Anti-Sag Index the better the sag resistance of the coating. The development of this instrument and its versatility for control and research have been described in published reports. Official Digest (JCT), October 1962. Official Digest (JCT), January 1964. The Anti-Sag Meter is called for in ASTM Method D 4400 and Federal U.S. Fed, No. 141 Method 4494 test methods and is essential equipment in paint laboratories in the U.S.A. and throughout the world.
Vintage LENETA Multinotch Anti-Sag Meter Test for Sag Resistance of paint in box
Used: An item that has been used previously. The item may have some signs of cosmetic wear, but is …
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Gardco :: Leneta Instruments
Abrasion Adhesion Application Color/Gloss Density Dispersion Drum Handling Drying Time/Gelation Film Flaws Film Thickness Hardness Impact & Flexibility Lab Apparatus Measuring Instruments Moisture/Air/Temp. Optical Instruments pH & Conductivity Publications Surface Profile Surface Tension Viscosity Home >> Products >> Application >> Leneta Instruments Leneta Instruments
Leneta Leveling Test Blade
No. LTB-2
Used in ASTM D4062 Test method for “Leveling of Paints by Drawdown Method” – This is a threaded steel rod that functions as a grooved doctor blade at any part of its circumference. It produces a film with parallel ridges and valleys in simulation of brush marks. Critical dimensions are indicated in Fig. 2. Plastic arms, in conjunction with straightedge guides, assure rectilinear movement of the blade. Test advantages compared with brushout application are speed, reproducibility, and a regular surface pattern that facilitates evaluation. It has been demonstrated that the leveling of films prepared in this manner correlates very well with brushout leveling. The diagram shows alternate clearances, in equal width, of 300 and 100 μm (12 and 4 mils). Since the wet film thickness laid down by a doctor blade is about half its clearance, it can be expected that the Leneta Leveling Test Blade will apply alternate stripes about 150 and 50 μm (6 and 2 mils) thick. Thus the amplitude of the square wave formed at the instant of application will be approximately 50 μm (2 mils) and the approximate average wet film thickness will be 100μm (4 mils). The latter value multiplied by the nonvolatile fraction by volume, gives the equivalent dry film thickness. See instructions in this section.
Details from the engineering drawing
GDP-3 Leneta Scrub Test Drawdown Plate
Designed specifically for use with Leneta Scrub Test Panels, 6-1/2 x 17 inch, this all glass plate helps to maximize drawdown uniformity by providing a precision glass surface. The design consists of sturdy 1/2 inch thick solid glass with a 3 inch spring clip. Rubber feet are included to prevent slipping. All glass means it is easy to clean and solvent resistant. The Test Panel Size is 6-1/2 x 17 in. The Glass Surface measures 8-1/2 x 22 in (216 x 559 mm). The Surface Thickness is 1/2 in (12.7 mm).
Pre-Shear Methods and Equipment
Practical methods for applying coatings develop high shear rates and stresses that strongly influence the degree of sagging and leveling. Since drawdown blades for measuring these characteristics develop relatively low rates of shear, they require that coatings be “Pre-Sheared” to simulate practical application. This can be accomplished by rapid mechanical mixing, or by forcing the liquid through a suitable hypodermic syringe. In general, the former is advisable with solvent type and the latter with aqueous coatings. Following is a description of specific equipment and procedures that have been found satisfactory in this connection. I – Pre-Shear by Rapid Mixing – Solvent Coatings A. Equipment Rotary power mixer, capable of 1300 and/or 3600 rpm Mixing can–Pint (500 mL) conventional paint can Mixing can–175 mL B. Procedure: Stir coating thoroughly with a spatula. Strain if necessary. Fill the mixing can approximately half. Attach the mixing paddle to the rotary power mixer. Set speed at 1300 rpm for the 175 mL can or 3600 rpm for the 500 mL (pint) can. Position paddle about 1/4 inches (6mm) from bottom of can. Mix 1 minute then promptly place about 8 mL of paint in front of the drawdown blade.
The Leneta Anti-Sag Meter
High Range – Item No. ASM-3
Medium Range – Item No. ASM-4
This is a drawdown blade with a series of notches of successively higher clearance. The notch clearance, is related to the degree of sagging and provides a numerical value referred to as the Anti-Sag Index. Three clearance ranges are available. Special ranges can be made to order. Development of this instrument was described in the Official Digest, and its versatility for rheological investigations demonstrated in a later article. The STANDARD Anti-Sag Meter is mandatory for several U.S. government specifications 3,4. Picture shows the Anti-Sag Meter in operation and illustrates various items of auxiliary equipment.
References – Official Digest (JCT), October 1962, Official Digest (JCT), January 1964, Fed. Test Method Std. No. 141a, Method 4494, ASTM Standard D3730-78, TT-E-508 Interior alkyd semi-gloss, TT-E-506 Alkyd gloss enamel, TT-P-1511 Interior latex gloss & semi-gloss, TT-I-564 Black stencil ink, ASTM Method D4400
Medium Range Anti-Sag Meter Typical application procedure
Technical Data Item No. Range Used for: Notch Clearances* ASM-3 High Solvent-borne Arch. coatings
Industrial O.E.M. coatings
High build coatings
Water-borne Arch. coatings μm – 350 400 450 500 625 750 875 1000 1125 1250 1500
Mils – 14 16 18 20 25 30 35 40 45 50 60 ASM-4 Medium μm – 100 150 200 250 300 350 400 450 500 550 600
Mils – 4 6 8 10 12 14 16 18 20 22 24 *Wet film thickness is about half of clearance.
The Economy Scale Sagometer correlation is as follows:
Scale C = High, Scale D = Medium
Anti-Sag Meter Test Method – Practical methods for applying coatings develop high shear rates and stresses that strongly influence the degree of sagging and leveling. Since drawdown blades for measuring these characteristics develop relatively low rates of shear, they require that coatings be “Pre-Sheared” to simulate practical application. This can be accomplished by rapid mechanical mixing, or by forcing the liquid through a suitable hypodermic syringe and needle. In general, the former is advisable with solvent type and the latter with aqueous coatings. Following is a description of specific equipment and procedures that have been found satisfactory in this connection. A. Equipment The Leneta Anti-Sag Meter. The Leneta Adjustable Straight Edge. The Leneta Drawdown Plate–Regular. Drawdown Charts* Form 7B, black and white; for light colored paints. Form WB, plain white, for dark colored paints. Catch-Papers, Form CP-1. Pre-shear equipment.
*With the Low Range Anti-Sag Meter use glass or flat metal panels. B. Preparation of Coating Stir thoroughly and adjust to 23°C (73.5°). Pre-shear in accordance with one of the methods furnished and test immediately thereafter. C. Application of Coating Attach the straight-edge onto the drawdown plate in suitable position. Place a test
chart on the drawdown plate under the clip. Place Anti-Sag Meter on the chart, with it’s
open side toward operator and it’s shoulder against the straight edge. Position Catch-Paper Place a suitable quantity (8-10mL) of pre-sheared paint directly in front of the
blade and draw down uniformly at about 6″ (150mm) per second. Promptly fasten the drawdown chart to a vertical surface, with stripes horizontal and left edge (thinnest stripe) at the top, and allow to dry in that position. D. Rating the Drawdown Note the notch numbers marked on the Anti-Sag Meter and Identify the corresponding
stripes accordingly. Ignore the leading and trailing edges, and observe only the central 5-1/2″ (140 mm) of blade path corresponding to the black area of Form 7B. The lowest (thickest) stripe that does not touch the one below itself is referred to as the index stripe, and its notch number is the Anti-Sag Index of the paint. For more precise Anti-Sag Index, add to the Index stripe number the product of the post-index clearance step and a fractional degree to which it has failed to merge with the next lower stripe. The fraction is estimated in accordance with the following table:
Technical Data Degree of Merger Fraction Unmerged Complete 0 Somewhat more than half 0.25 Approximately half 0.50 Somewhat less than half 0.75
Typical Test Pattern w/ Form 7B
The Leneta Magnetic Spray Stand
Item No. SS-1 – Laboratory spray stands are often unsteady devices, thickly coated with overspray. The Leneta Magnetic Spray Stand provides stability, tidiness, and general convenience. Its design is simple: two small, but powerful, pot magnets are mounted at one end of a curved steel rod. The other end of the rod is screwed into a heavy steel base. Overall height is approximately thirteen inches. Steel panels 6 x 12 inches and larger are held firmly during spraying and then easily removed. The magnets remain clean, being protected from over-spray by the panel. Other parts of the device are readily cleaned by soaking in paint remover or caustic solution. Leneta Magnetic Spray Stand, No.SS-1,
showing a 6″ x 12″ steel panel in position
for spraying. Alu-Card in position for spraying. It hangs from
a small peg on the steel adapter, steadied
by side arms to prevent it from blowing
off in the spray stream.
Alu-Card Adapters
For use with the Magnetic Spray Stand – The Magnetic Spray Stand can be used with Alu-Cards or other non-magnetic panels by employing one of the steel adapters designed for that purpose. The picture above shows an adapter in use, and describes how it works. They are available in two sizes, corresponding to the standard sizes in which Alu-Cards are available.
Technical Data Item Number Product Name Leneta Paper-Testing InksFor Panel Size AD-2 Alu-Card Adapter, Size G 3 x 5-1/2″ (76 x 140 mm)
Leneta ASTM Scrub & Staining Media
WA-SC-1: Non-Abrasive Type used in ASTM Method D 3450, Test for Washability Properties
WA-SC-2: Abrasive Type used in ASTM Method D 2486, D 4213 and D 3450 Scrub Resistance & Washability Tests Leneta-ASTM Scrub Media – These are aqueous dispersions of detergent, cellulosic thickener and preservative, made in conformance with and approved for use in the indicated ASTM methods. The abrasive type contains ground silica for accelerated erosion. The two compounds are representative of the detergent and abrasive character of commercial cleaning products. Because of the variable nature of their ingredients, The Leneta Company provides media adjusted and tested to assure batch-to-batch uniformity. Each container is fully identified by batch number and shipping date. The contents of unopened containers are guaranteed standard in performance for a year, which is highly conservative on the basis of observed package stability.
PC-ST-1: Pigmented Type used in ASTM Method D 3450, Test for Washability Properties
This is a finely ground dispersion of high jet carbon black in a blend of mineral oil and odorless mineral spirits. It is specified in ASTM D3450 to meet the laboratory requirement for a reproducible composition of matter, representative in a general way of soilants encountered in the field.
PC-ST-31: Penetrating Dye Type Recommended for ASTM Method D3258, Test for Stain Resistance and Porosity
This is a proprietary composition of pigment and dark-colored dye dispersed in an organic liquid vehicle. When applied and then removed from a paint film, the intensity of the resultant stain indicates the degree of film porosity.
Both media have perfect package stability and are manufactured and control tested to assure batch to batch uniformity. Their usefulness extends not only to ASTM tests, but to any soil and stain removal test procedure.
Technical Data Form Number Identification of Standard Types, Thickness & Sizes Non-Abrasive Type SC-1
ASTM D3450 Test for Washability Properties
Abrasive Type SC-2
ASTM Method D2486, D4213 and D3450 ,
Scrub Resistance and Washability Tests. Non-Abrasive Type ST-1
ASTM D3450 Test for Washability Properties
Abrasive Type ST-31
ASTM Method D3258 ,
Test for Stain Resistance and Porosity. Prices
Prices listed in US dollars and subject to change For more info Contact Us or call 954-946-9454 Request a Quote Item Number Product Description Pkg Desc. Package
Wt. lbs. approx. Price AP-LTB-2
Leneta Leveling Test Blade 1 Each
2
$1,018.00 14973 GDP-3 Leneta Scrub Test Drawdown Plate
1 Each 5
323.00 AP-ASM-3
Anti-Sag Meter, High Range
1 Each
2
970.00 AP-ASM-4
Anti-Sag Meter, Medium Range
1 Each 2
970.00 PC-SS-1
Magnetic Spray Stand
1 Each
13
299.00 PC-AD-2
Alu-Card Adapter, Size G 1 Each
1
53.00 PC-IP-1B Non-Stick Leneta ™ Inter-Leaf Paper 7 5/8 x 11-1/4 194 x 286 – 106.00 PC-IP-1C Non-Stick Leneta ™ Inter-Leaf Paper 7 5/8 x 10-1/4 194 x 260 – 98.00 PC-IP-1A Non-Stick Leneta ™ Inter-Leaf Paper 5 1/2 x 10 140 x 254 – 80.00 WA-SC-1
Scrub Medium, Non-Abrasive Type
Pint jar
2
40.00 Jar WA-SC-2
Scrub Medium, Abrasive Type
Pint jar
2 40.00 Jar PC-ST-1 Staining Medium
1/4 pint jar
1
25.00 Jar PC-ST-31
Staining Medium 1/4 pint jar
1
39.00 Jar Ask for quantity break & inquire about items not listed
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Paint Test Chart, Sag and Leveling
This form was designed for use with the Leneta Anti-Sag Meter and finds additional use with the Leneta Leveling Test Blade. Its special characteristic is the provision of an applicator path with a considerable length of black in the middle. Thus by making test observations only over the black area, there is automatic compliance with instructions to ignore the leading and trailing edges of the drawdown.
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