الوصف

Introduction:  

BEVS***1 Pencil Tester is complied with the requirements of ASTM D***3 and ISO****4 standard, through leaving a superficial trace on the dry coating film with a certain pencil hardness, the surface will be variably damaged by the hardest pencil to evaluate pass/fail or hardness. Recommend to apply on the smooth film surface.Use variety of different hardness pencils,the angle between pencil and the coated surfaceis *5°, scratch on the coated surface under a certain of force, the scratch resistance hardness of the coating is the pencil hardness which just scratched the coating.

Technical Specification:

â—†Pressure of Pencil Tip: ***0/**0/**0g

â—†The angle between pencil and film surface is *5°

â—†Three points are touched on the tested surface (roller, pencil tip)

â—†Scratch Speed: 1 mm/sec