PENCIL HARDNESS TEST ACC. WOLFF WILBORN | TQC (EN) | ISO 15184 ASTM D3363 JIS K-5400 JIS K-5600 ECCA
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 an ...