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Description of ASTM-D6279 2013ASTM D6279 - 03(2013)Standard Test Method for Rub Abrasion Mar Resistance of High Gloss CoatingsActive Standard ASTM D6279 | Developed by Subcommittee: D01.55 Book of Standards Volume: 06.02 ASTM D6279Significance and Use 5.1 Coatings, particularly the high gloss coatings used on automobiles, boats, toys, etc., are subject of a wide variety of conditions (for example, wiping, cleaning and exposure) during manufacture and service that can mar their surface. The ability of high gloss coatings to maintain their appearance is an important product attribute. This test method provides a way to estimate the ability of high gloss coatings to resist mar damage. 1. Scope 1.1 This test method covers procedures for evaluating the relative mar resistance of a series of high gloss coatings applied to a flat, rigid surface. Wet rub and dry rub abrasion tests are described. To fully characterize a coating's mar resistance, both tests should be run.
Note 1 Dry abrasion mar resistance can also be evaluated by using Test Methods D6037 . If a series of very
highly mar resistant coatings is being evaluated, Test Methods D6037 will generally provide the better performance discrimination than the dry rub test described here. However, if the
equipment described in Test Methods D6037 is not available, the dry rub test described in this test method affords a reasonable alternative. The dry rub test is also useful for evaluating
coatings that are not highly mar resistant.
1.2 Mar resistance is assessed by measuring the gloss of the abraded and unabraded areas. Mar resistance is directly related to the coating's ability to retain gloss in abraded areas.
Note 2 The mar resistance values obtained by this test method 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 SI units are to be regarded as standard. The values given in parentheses are for information only. 1.4 This standard does not purport to address 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.
ASTM Standards D523 Test Method for Specular Gloss D823 Practices for Producing Films of Uniform Thickness of Paint, Varnish, and Related Products on Test Panels D1005 Test Method for Measurement of Dry-Film Thickness of Organic Coatings Using Micrometers D1186 Test Methods for Nondestructive Measurement of Dry Film Thickness of Nonmagnetic Coatings Applied to a Ferrous Base D1400 Test Method for Nondestructive Measurement of Dry Film Thickness of Nonconductive Coatings Applied to a Nonferrous Metal Base D3924 Specification for Environment for Conditioning and Testing Paint, Varnish, Lacquer, and Related Materials D6037 Test Methods for Dry Abrasion Mar Resistance of High Gloss Coatings Keywords abrasion; aluminum; coatings; gloss; grit; mar; powder; rub test; scratch; ICS Code ICS Number Code 25.220.99 (Other treatments and coatings) DOI: 10.1520/D6279 ASTM International is a member of CrossRef. ASTM D6279This book also exists in the following packages...Subscription InformationMADCAD.com ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. For pricing on multiple office location ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.
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About ASTMASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide. |
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