MaTestLab > Test Standards > ASTM D6279 Test Method for Rub Abrasion Mar Resistance of High Gloss Coatings
Last updated 12th March 2025
ASTM D6279 Test Method for Rub Abrasion Mar Resistance of High Gloss Coatings
ASTM D6279 outlines procedures for assessing the relative resistance to the marring of various high-gloss coatings when applied to a flat, rigid surface. It involves conducting wet and dry rub abrasion tests to fully evaluate a coating's mar resistance. ASTM D6279 entails measuring the gloss levels of abraded and unabraded areas, as mar resistance correlates directly with a coating's capability to maintain gloss in areas subjected to abrasion.
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ASTM D6279 Introduction
High gloss coatings, commonly applied on automobiles, boats, toys, etc., undergo various conditions such as wiping, cleaning, and exposure during manufacturing and service, which can mar their surface. Preserving the appearance of high gloss coatings is crucial, and ASTM D6279 offers a means to gauge their resistance to marring damage.
ASTM D6279 Test Method
Sample Preparation and Marring
In the ASTM D6279-15 test method, coatings are evenly applied to panels with consistent surface texture and allowed to dry or cure. Subsequently, the panels undergo marring using either dry abrasion media, wet abrasion media, or both over a specific area. The abraded area refers to the coating portion affected during the test, while the non-abraded area remains unaffected.
Measurement by Gloss Meter
A gloss meter is employed to assess the coating’s gloss in both the abraded and unabraded sections of the test panels. The coating’s ability to maintain gloss in the abraded areas directly correlates with its resistance to marring.
D6279 Equipment and Sample Preparation
Specimen Detail
This test method outlines procedures for assessing the relative mar resistance of various high gloss coatings when applied to a flat, rigid surface.
Specimen Size
At least two panels are prepared for each coating to be tested, each measuring 101.6 by 152.4 mm.
D6279 Test Result and Interpretation
In conclusion, the durability and maintenance of high gloss coatings, commonly employed in automotive, marine, and consumer products, are crucial considerations given the diverse conditions they endure during manufacture and use, such as wiping, cleaning, and exposure. Preserving the appearance of these coatings is essential, making their resistance to surface damage a significant product attribute. The test method outlined herein offers a means to assess the ability of high gloss coatings to withstand marring, providing valuable insights for product development and quality assurance.
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Tests Related to ASTM D6279
ASTM D6279 is related to tests, including ASTM D523 for testing specular gloss, ASTM D823 for producing varnishes and paints of uniform thickness, and ASTM D1005 for measuring dry film thickness.
Use of D6279 in Various Industries
It is widely used by various industries such as the automotive, furniture, and consumer electronics sectors to determine durability and aesthetic quality with regard to scuff and wear resistance for high-gloss coatings.
Materials Commonly Tested with D6279
This test method is essentially used for high-gloss coatings such as polyurethane, acrylic, or epoxy, commonly used in automotive paints, decorative plastic components, and glossy wooden panels, especially for decorative or protective coatings requiring mar resistance for visual appeal and performance.
Common Challenges and Troubleshooting in D6279 Testing
Testing faces inconsistencies, improper sample preparation, and environmental factors. Troubleshooting includes accurate sample alignment, strict environmental controls, and regular calibration for consistent results.
Importance of D6279
The standard is important for the abrasion and mar resistance assessment of high-gloss coatings, which in turn can affect the product’s durability and appearance. It allows for uniform quality control, ensures customer expectations, and aids in product development, regulatory compliance, and industry benchmarking.
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The required number of samples or specimens should comply with the procedure given in the astm d6279 standard. However, the MaTestLab operations team can assist you for your special requirements once you share your testing details with us.
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The turnaround time for astm d6279 test methodology depends upon the test procedure mentioned in the standard test document. However, we at MaTestLab understand your research requirements and hence try to get your test completed within the least possible time.
Where can I get the astm d6279 tested?
You can share your astm d6279 testing requirements with MaTestLab. MaTestLab has a vast network of material testing laboratories, spread across the USA and Canada. We support your all material testing needs ranging from specific astm d6279 test to various testing techniques.
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