The 5021 Pencil Hardness Tester is an effective method to test coatings for their hardness and resistance to scratches and wear. The test method allows the use of pencils which have a known hardness grade to be moved over the surface to be tested at a fixed angle and pressure. These pencils, when passed for a specified number of times on the coating will also allow a wear factor to be determined which is related to the hardness of the pencil used.
Meets ASTM D3363
Pencil Hardness Tester Complete with carrying case, 17 pencils of different grades (Pencil leads include: 9H, 8H, 7H, 6H, 5H, 4H, 3H, 2H, H, F, HB, B, 2B, 3B, 4B, 5B, 6B)