Thiết bị đo độ cứng bút chì - Pencil Hardness Tests | NeurTek Instruments

Overview:

This is a simple and effective technique to evaluate the hardness of many coatings.

The pencil lead, prepared beforehand by rubbing it on fine abrasive paper, is maintained at an angle  and pushed with uniform pressure onto the sample, leaving either a superficial trace or causing destruction down to the substrate.

NEURTEK Pencil Hardness Tests are supplied complete with stand and a series of 14 pencils, ranging from 6B to 6H hardness values.

References