ISO 2409 Cross Cut Test renewed
The ISO 2409 Cross Cut Test has been recently updated by ISO. The new version that is now valid has several changes compared to the old one:
The new standard includes an enhanced description of the well-known knives.The knives need to have a trailing edge, because otherwise it skates instead of scratches. Knives that do not have this trailing edge are not according to the standard.
The new version of the standard has a huge change compared to the previous document. The always-debated adhesion strength of the tape has been taken out of the normative part. The standard now allows for 3 methods of removing delaminated paint: tape, brush and compressed air.