ASTM D6037-96

Standard Test Methods for Dry Abrasion Mar Resistance of High Gloss Coatings

SCOPE
1.1 Two test methods are included. Test Method A uses a device that contains an abrasive wheel. Test Method B uses a device that contains a wheel that has been fitted with abrasive paper. Either method can be used to evaluate the dry abrasion mar resistance of coatings applied to planar, rigid surfaces. Each test method provides good discrimination between highly mar resistant coatings.  
1.2 Mar resistance is assessed by measuring the gloss of abraded and unabraded areas. Mar resistance is directly related to the coating's ability to retain gloss in abraded areas.  
Note 1- The mar resistance values obtained by these test methods have no absolute significance. They should only be used to derive relative performance rankings for test panels that have been prepared from the series of coatings that are currently being evaluated. If mar resistance values are quoted between laboratories, it is essential that a common standard be measured and that the values be compared to that standard. Even then, the values should be used with caution.  
1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.  
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

General Information

• Status: Historical
• Publication Date: 31-Dec-1995
• Technical Committee: D01 - Paint and Related Coatings, Materials, and Applications
• Drafting Committee: D01.23 - Physical Properties of Applied Paint Films

Relations

• Replaced By: ASTM D6037-96(2002) - Standard Test Methods for Dry Abrasion Mar Resistance of High Gloss Coatings
• Effective Date: 10-Nov-1996

Standards Content (Sample)

Designation: D 6037 – 96
Standard Test Methods for
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Dry Abrasion Mar Resistance of High Gloss Coatings
This standard is issued under the fixed designation D 6037; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope Dry Film Thickness of Nonmagnetic Coatings Applied to
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a Ferrous Base
1.1 Two test methods are included. Test Method A uses a
D 1400 Test Method for Nondestructive Measurement of
device that contains an abrasive wheel. Test Method B uses a
Dry Film Thickness of Nonconductive Coatings Applied to
device that contains a wheel that has been fitted with abrasive
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a Nonferrous Metal Base
paper. Either method can be used to evaluate the dry abrasion
D 2240 Test Method for Rubber Property—Durometer
mar resistance of coatings applied to planar, rigid surfaces.
3
Hardness
Each test method provides good discrimination between highly
D 3924 Specification for Standard Environment for Condi-
mar resistant coatings.
tioning and Testing Paint, Varnish, Lacquer and Related
1.2 Mar resistance is assessed by measuring the gloss of
2
Materials
abraded and unabraded areas. Mar resistance is directly related
D 4449 Test Method for Visual Evaluation of Gloss Differ-
to the coating’s ability to retain gloss in abraded areas.
2
ences Between Surfaces of Similar Appearance
NOTE 1—The mar resistance values obtained by these test methods
have no absolute significance. They should only be used to derive relative
3. Terminology
performance rankings for test panels that have been prepared from the
3.1 Definitions of Terms Specific to This Standard:
series of coatings that are currently being evaluated. If mar resistance
3.1.1 mar resistance—the ability of a coating to resist
values are quoted between laboratories, it is essential that a common
permanent deformation or fracture, resulting from the applica-
standard be measured and that the values be compared to that standard.
Even then, the values should be used with caution.
tion of a dynamic mechanical force. These test methods
measure resistance to visible damage caused by mild abrasion.
1.3 The values stated in inch-pound units are to be regarded
as the standard. The values given in parentheses are for
4. Summary of Test Methods
information only.
4.1 The coatings that are being evaluated are applied at
1.4 This standard does not purport to address all of the
uniform dry film thickness to planar panels of uniform surface
safety concerns, if any, associated with its use. It is the
texture. After drying or curing, or both, the panels are marred.
responsibility of the user of this standard to establish appro-
Mar resistance is assessed by measuring the coating’s gloss
priate safety and health practices and determine the applica-
within the abraded and unabraded areas of test panels. Mar
bility of regulatory limitations prior to use.
resistance is directly related to the coating’s ability to retain
2. Referenced Documents gloss in abraded areas.
2.1 ASTM Standards:
5. Significance and Use
2
D 523 Test Method for Specular Gloss
5.1 Coatings, particularly the high gloss coatings used on
D 609 Practice for Preparation of Cold-Rolled Steel Panels
automobiles, boats, toys, etc., are subject to a wide variety of
for Testing Paint, Varnish, Conversion Coatings, and
2 conditions (for example, wiping, cleaning, and exposure) that
Related Coating Products
can mar their surface. The ability of these coatings to maintain
D 823 Practices for Producing Films of Uniform Thickness
2 their appearance is an important product attribute. These test
of Paint, Varnish, and Related Products on Test Panels
methods provide a way to estimate the ability of high gloss
D 1005 Test Methods for Measurement of Dry-Film Thick-
2 coatings to resist mar damage.
ness of Organic Coatings Using Micrometers
5.2 These test methods do not provide fundamental values.
D 1186 Test Methods for Nondestructive Measurement of
However they are suitable for estimating the ability of high
gloss coatings to resist mar.
5.3 Since the susceptibility of coatings to marring varies
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This test method is under the jurisdiction of ASTM Committee D-1 on Paint
and Related Coatings, Materials, and Applications and is the direct responsibility of
Subcommittee D01.23 on Physical Properties of Applied Paint Films.
Current edition approved Nov. 10, 1996. Published January 1997.
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Annual Book of ASTM Standards, Vol 06.01. Annual Book of ASTM Standards, Vol 09.01.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
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D 6037
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widely, the number of cycles that are needed to cause “rel- 7.1.1 Panels, that is, metal panels with a ⁄4-in. (6-mm) hole
evant” mar damage also varies. Usually, 2 to 50 cy
...