Helbig & Lang - The surface finishing specialist

Cross Cutting Test

The cross cutting test according to DIN EN ISO 2409 provides information about the coating adhesion and the elasticity of the surface. For this kind of test a special cutting knife is needed. 6 cut lines are drawn in a right angle through the coating till the underground is reached. The blade distance depends on the coating thickness. Afterwards an adhesive tape (defined in the norm) is stuck on the cut raster and removed in a vertical way.

The emerged cut raster is evaluated by using the standard pictures and comparing them to the actual result; the different extents of damage can be assessed. The test results (cross cut rating) can be evaluated between 0 (very good) and 5 (very bad).

As we are talking about a destructive type of test, the method is only used on well-defined areas, at the beginning of a project or on sample parts.