Introduction:
▲This instrument applied the Pencil Scratch Method.
▲It is a fast and economical way to determine the film hardness using the drawing lead core or the pencil core.
▲The instrument can be used both in laboratory, and on site.
Principle:
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.Push the instrument sliding,pencil draws the corresponding track in the coating.In the change of different pencil marks,the hardness value of the film can be determined.
Technical Specifications
▲Load Weight: 1000g / 750g / 500g
▲Measurement Angle: 45°
▲Three Touch Points: Two Wheels,a Pencil Core
▲Scratch Speed: About 1 mm/s
▲Standard Configuration: Pencil Hardness Tester, 1000g Weight, 750g Weight, Pencils（6B-6H）, Eraser, Knife, Horizontal Pad Block, Sandpaper