Suitable designs for applying the tensile stress are shown in Figures 1 and 2. The tensile stress shall be applied in a direction perpendicular to the plane of the coated substrate and shall be increased at a substantially uniform rate, not greater than 1 MPa/s1) such that failure of the test assembly occurs within 90 s.
Tensile tester, suitable for carrying out the chosen procedure specified in Clause 8. ISO 4624:2016 pdf free.Paints and varnishes – Pull-off test for adhesion
