Pencil Hardness Tester
Pencil Hardness is one the important parameters for paint and coatings. Pencil hardness is a measure of resistance to scratch and wear by external forces.
Description
- The test method use a pencil with known hardness to move over sample at fixed 45 degree and fixed pressure (750g or 1000g).
- Total 20 pencil of different hardness (9B-9H) are included in standards. Any pencil of appropriate hardness can be chosen for scratch and wear test.
- Correct result can be obtained with standard sample preparation and method to sharpen the pencial
- With the pencil hardness tester, it is easy to install the pencil and rotate the pencil 90 degree. (Pencil can be used four times with one time sharpening)