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The instrument applies mechanical measurement. Keep three point touch the coating (two wheel, a pencil core), and a 45 degree angle between pencil and test surface.
Coating hardness is the necessary measurement for the performance of coatings. This instrument applied the pencil scratch method.
Coating hardness is the necessary measurement for the performance of coatings. This instrument applied the pencil scratch method.
《GB/T 6739-96》 Coating Hardness Pencil Test Method;《GB/T 1727-92》General Method for Preparing Film
《ASTM D3363-00》Standard Test Method for Determination of Coating Hardness by Pencil Test Method