What test is used to evaluate the resistance of paint to abrasion?

The Taber abrasion test is the standard method used to evaluate the resistance of paint to abrasion. This test measures how well a painted surface can withstand wear and tear from the mechanical actions of scrubbing or rubbing. During the test, a sample coated with paint is subjected to a rotating abrasive wheel, and the amount of material removed from the surface is measured. The results provide a quantitative assessment of the paint's durability and wear resistance, which is critical for applications where the surface will be exposed to friction or contact with other materials.

In contrast, the PEEL test assesses the adhesion of a coating to its substrate rather than abrasion resistance. The impact resistance test evaluates how well a coating can withstand sudden force or impact, while the flexural strength test measures a material's ability to bend without breaking, which is unrelated to abrasion resistance.