Film Pencil Hardness Measurement
Pencil hardness refers to the measurement of the hardness of the coating film with a pencil. The hardness of the coating film can be expressed by the number of pencils that can penetrate the thickness of the coating film to the bottom.
Pencil Hardness Device
Pencils: Generally, high-grade drawing pencils produced by the same manufacturer are used .
experiment procedure
Test under the test conditions of 23±2°C and relative humidity of 50±5%. Sharpen the pencil to a length of about 3mm (do not scrape the lead). Hold the pencil with your hand and maintain an angle of about 45° with the surface of the object, push the pencil forward at a speed of 3mm/s with force (do not allow the lead to break), and a lead with a length of about 3mm travels back and forth at different parts for five times. After the second time, wipe off the pencil dust with leather or a soft cloth, and check the scratches of the coating film.
- 1Film hardness testing method: pendulum hardness, pencil hardness, etc
- 2ISO 15184 Pencil method to measure the hardness of paint film
- 3Analysis of hardness measurement by ASTM D3363 pencil method
- 4Pencil Hardness Tester test procedure, application and different Hardness Pencil introduction
- 5Pencil hardness testing of film
- 6Ceramic Coated Pencil Hardness Test
- 7Relevant standards for pencil Hardness Testers
- 8What is a pencil hardness test?
- 9What performance subjects are tested for water-based floor coating materials and how do they meet the standards?
