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Elcotest Pencil Hardness Tester
PENCIL HARDNESS TESTER
The Pencil Hardness tester is the most common but
also the most inconsistent technique to measure the
hardness of a coating. This test conduct scratch
hardness tests to determine the resistance of
coating material in order to prevent the scratches
on the surface.
In the test, pencils of various degrees of hardness
are moved over the surface under a fixed pressure
and angle to the surface. The degree of hardness of
the pencil which damages the surface is taken s a
measurement of scratch hardness e.g. 3H hardness.
Pencil Guide with imported Steadtler or UNI
Mitsubishi Japanese 12/19 pencils
Pencils 8B, 7B, 6B, 5B, 4B, 3B, 2B, B, HB, F, H, 2H, 3H,
4H, 5H, 6H, 7H, 8H, 9H.
Complies with ASTDM 3363