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1:39
YouTube
Industrial Physics
Scratch Hardness Testing with TQC Sheen - Wolff Wilborn Method
The TQC Pencil Hardness Test according Wolff Wilborn provides in a simple method to test the scratch hardness of coatings. In this test, pencils in a range of 6B to 8H hardness-grade are used. The pencil is moved scratching over the surface under a 45° angle with a constant pressure. You can find out more here! https://bit.ly/3Hnyyql At ...
1.4K views
Jun 15, 2022
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