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Table 1: Cross-Cut Adhesion - Classification of Test Results
Surface
Description
The edges of the cuts are completely smooth; none of the squares of the
lattice is detached.
Detachment of flakes of the coating at the intersections of the cuts. A
cross cut area not significantly greater than 5% is affected.
The coating has flaked along the edges and/or at the intersections of the
cuts. A cross cut area significantly greater than 5%, but not significantly
greater than 15% is affected.
The coating has flaked along the edges of the cuts partly or wholly in
large ribbons, and/or it has flaked partly or wholly on different parts of the
squares. A cross cut area significantly greater than 15%, but not
significantly greater than 35%, is affected.
The coating has flaked along the edges of the cuts in large ribbons and/or
some squares have detached partly or wholly. A cross cut area
significantly greater than 35%, but not significantly greater than 65%, is
affected.
Any degree of flaking that cannot be classified even by classification 4
(1B).
ISO
ASTM
0
5B
1
4B
2
3B
3
2B
4
1B
5
0B
11
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