. PENCIL HARDNESS TESTER
Pencils of various grades of hardness are moved over the coated film on metallic sheet at a specific angle and pressure. The test to be carried out in accordance with Wolff-Wilborn. The degree of hardness of the pencil, which damages the coating, is taken as a measurement of scratch hardness. Pencils having hardness grade from 6B to 9H are
Used.
Pencils of various grades of hardness are moved over the coated film on metallic sheet at a specific angle and pressure. The test to be carried out in accordance with Wolff-Wilborn. The degree of hardness of the pencil, which damages the coating, is taken as a measurement of scratch hardness. Pencils having hardness grade from 6B to 9H are
Used.
1 comment:
The coating and paint properties mainly include physical properties (such as appearance, density, thickness, mechanical properties like bond strength, abrasion resistance, residual stress, etc.) and chemical properties (such as chemical composition, Coating and Paint testing
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