COATING HARDNESS TESTERS
1. COATING HARDNESS TESTER - PHT-995:
The coating hardness tester is engineered to determine the resistance of coatings to scratch effects on the surface.
Utilizing the Wolff/Wilborn principle,this coating hardness tester conforms to ASTM D 3363-05. Pencils of various
known hardness are dragged over the coating surface at a fixed angle and fixed pressure. Beginning with the hardness
lead, graduating softer, movements at .250" (6.5mm) will determine where the surface area is/is not being gouged or
scratched. Pencils can be changed easily via knurled thumb screw on the side of the instrument.