Codes & Standards - Purchase
For a multi-coat system, each coat may be tested separately or the complete system may be tested.
The method may be carried out as follows:
- either as a 'pass/fail' test, by testing to a specified depth of indentation to assess compliance with a particular requirement;
- or by gradually increasing the depth of indentation to determine the minimum depth at which the coating cracks and/or becomes detached from the substrate.