Scratch Resistance

A new test method that simulates an abrasive load on surfaces has been developed for determining the scratch resistance of materials. Small particles (e.g. sand) are accelerated in an air flow before they hit the surface to be tested.

Other standard tests have so far been unable to simulate realistic loads, for instance the slipstream of a car travelling at speeds of up to 90 mph.

The most important parameters required for this test method such as flow velocity, impact angle or particle size and mass are freely selectable and can be adapted to each specific task without any additional effort.

Since this patented method is mainly employed for glazing tests, the specimens are subsequently assessed with the help of optical haze and transmission measurements.