TQC Sheen Pencil Hardness Test (Wolff Wilborn)
Pencil hardness test for coatings (Wolff Wilborn)
Learn morePendulum hardness tester for coatings (König and Persoz)

Digital pendulum hardness tester using the König and Persoz methods (ISO 1522, ASTM D4366); single tests or batches of three, up to 25 stored logs and USB export.
Pencil hardness test for coatings (Wolff Wilborn)
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