Mar behaviour analysis methodology using its Nanoscratch Tester is the subject of the latest Application Report from Anton Paar.
Mar is described as a physical damage that usually occurs within a few micrometers of the surface of the topcoats on vehicle bodywork. Such damage is usually the cause of the change in appearance observed in the paint coating, and therefore one of the major concerns of the automotive coating industry.
Mar can be caused by keys, fingernails, branches and blowing sand. The car wash is, however, believed to be the main cause as it is one of the few periodic activities for many car owners.
The Application Report demonstrates a mar behaviour analysis methodology using the Anton Paar Nanoscratch Tester. This methodology, which allows an objective quantitative measurement of the mar behaviour on automotive paint coating, is detailed along with a typical example.
