Hot scratch test
The Honda hot-scratch test is a special test for examining the adhesive strength of a coating on plastic parts. The sample parts to be tested are provided with a defined damage, tempered to 80 °C for > 30 minutes and immediately scratched using a linear tester and a standardised blade.
Subsequently, the coating damage is evaluated according to the standard HONDA 7710Z-TVA-9000 6-14: 2015-11.