A scratch hardness tester can be used to carry out a scratch test on a coated surface. A scratch stylus is pulled over a test specimen with a previously defined constant force.
A “yes/no test” ultimately checks whether the stylus penetrates the surface down to the substrate with this force or not.
A test for a minimum load that penetrates a surface to the substrate is carried out by increasing the scratch force.
Standards: AS/NZS 1580.403.1, PV 3952, TL 226, BS 3900-E2, DIN 53799, ECCA T12, EN 13523-12, ISO 1518-1
