Adhesion Cross Cut Test Alliance LLC（附着力横断测试联盟有限责任公司）.pdf

Adhesion Cross Cut Test The cross-cut test is a simple and easily practicable method for evaluating the adhesion of single- or multi-coat systems. Procedure – Make a lattice pattern in the film with the appropriate tool, cutting to the substrate – Brush in diagonal direction 5 times each, using a brush pen or tape over the cut and remove with Permacel tape – Examine the grid area using an illuminated magnifier ISO Class.: 2 / ASTM Class.: 3 B Cross-Cut Results The coating has flaked along the edges and/or at the Adhesion is rated in accordance with the scale below. intersections of the cuts. A cross-cut area significantly greater than 5 %, but not significantly greater than 15 %, is affected. ISO Class.: 0 / ASTM Class.: 5 B ISO Class.: 3 / ASTM Class.: 2 B The edges of the cuts are completely smooth; none of the The coating has flaked along the edges of the cuts partly or squares of the lattice is detached. wholly in large ribbons, and/or it has flaked partly or wholly on different parts of the squares. A cross-cut area significantly greater than 15 %, but not significantly