5021 Pencil Hardness Tester

Name: 5021 Pencil Hardness Tester
Brand: Gardco

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Hardness Testers

For the pencil hardness test, pencils of increasing hardness values are moved over the surface in a precisely defined way until one lead damages the surface. Surface Hardness is defined by the hardest pencil grade which just fails to damage the surface.
Tests coatings for hardness and scratch and wear resistance
Determines wear factor, related to hardness of pencil used
The pressure or weight applied relates to pencil lead crushing and therefore can be used for vertical coating evaluation to achieve repeatable results.

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