Scratch resistance test is a lot of materials need to do a test indicator.Currently used on the scratch resistance testing methods are many, but the principle is basically similar. The following focus on the interpretation of the next five fingers scratch method. This test method requires the use of the instrument for the five fingers scratch tester. The scratch tester uses tungsten carbide as a scratch to accurately detect surface wear caused by unconventional defined physical form (eg scraping, grasping, planing, etc.). Take the initiative to detect the car, the outer trim in the smooth, texture of the plastic pieces of wear resistance. Designed based on the automotive industry standard technical requirements, there are usually five contacts. Five fingers scratch tester instrument bracket supports five independent spline rods, so that the needle can be loaded with continuous vertical force. The handle of the bracket controls the height of the cantilever, and the five bra...