Standard Test Method for
Abrasion Resistance of Organic Coatings by the Taber
Abraser
This test method covers the determination of the resistance of organic coatings to abrasion produced by the Taber
Abraser on coatings applied to a plane, rigid surface, such as a
metal panel.
Summary of Test Method
The organic coating is applied at uniform thickness to a
plane, rigid panel and, after curing, the surface is abraded using
rotary rubbing action under controlled conditions of pressure
and abrasive action. The test specimen, mounted on a turntable
platform, turns on a vertical axis, against the sliding rotation of
two abrading wheels. One abrading wheel rubs the specimen
outward toward the periphery and the other, inward toward the
center. The resulting abrasion marks form a pattern of crossed
arcs over an area of approximately 30 cm2.
Abrasion resistance is calculated as loss in weight at a
specified number of abrasion cycles, as loss in weight per
cycle, or as number of cycles required to remove a unit amount
of coating thickness.
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