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$447.00
SE
China QHZ film scratch test to evaluate film strength, Hardness and adhesion
≥60mm20~40mm/s0~2000g
Scribing needle length ≥ 60mm, scribing needle traverse speed 20-40mm/s, steel ball diameter 1mm, load range 0-2000g, scribing angle 10-15 °, minimum increment 50g, evaluate film strength, Hardness, adhesion, according to GB9279-88 design.
If you don't know how to choose "Scratch Tester", please consult customer service.