Cross cut test

In some sources also designated "cross cut tape test" or "grid cut test".

Method to test the adhesion of paintings on a substrate, usually on plastics where the adhesion of paintings usually is critical. After applying a test painting a grid is cut into the coating layer. Then a standardized adhesive tape is pressed onto the surface and rapidly pulled off. If all the lacquer remains on the substrate, the adhesion is considered to be sufficient, if particles of the coating remain on the adhesive, the adhesion properties failed.

grid cut test
The adhesion of coatings is tested by the cross cut test. There is sufficient adhesion if no particles of the coating are pulled of from the substrate.