Paints and varnishes. Determination of film hardness by pencil test
Paints and varnishes. Determination of film hardness by pencil test
This site uses cookies and visit counters for operation and statistics. Privacy policy
1 Scope This International Standard specifies a method for determining the film hardness by pushing pencils of known hardness over the film. The test can be performed on a single coating of a paint, varnish or related product, or on the upper layer of a multi-coat system. This rapid test has not been found to be useful in comparing the pencil hardness of different coatings. It is more useful in providing relative ratings for a series of coated panels exhibiting significant differences in pencil hardness . The method is applicable only to smooth surfaces.
Other BS standards
