Coating hardness is the necessary measurement for the performance of coatings. 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 pencil scratch method for coating hardness testing is a common method in the world since the 1980s. In China, this test method has also been promoted to the coating research and industrial production. The instrument can be used both in laboratory, and on site.
The Pencil Hardness Tester 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.
Pencil Hardness Selection
1000g /750g /500g
45°(Between Pencil and Measured Surface)
Three Touch Points
Two Wheels, A Pencil Core
About 1 mm/s
Pencil Hardness Tester
Horizontal Pad Block
1. Support OEM, customer can made their own Logo brand. 2. Guarantee is 2 years, during guarantee defective or damage spare parts can be replaced free in next order shipment. 3. Support payment by T/T, Paypal, Western Union in advance. 4. Delivery time is 2~7days, it all depend on quantities, for samples have stock. 5. Generally products ship by DHL, UPS, FEDEX,