Tel: +604-507 4613 / +604-507 4713

Plasmost Enterprise Sdn Bhd
47, Lorong Perusahaan Ringan Juru 1,
Kawasan Perusahaan Ringan Juru, Juru,
14100 Bukit Mertajam,
Penang, Malaysia.
Kuala Lumpur Office
E-2-22, IOI Boulevard, Jalan Kenari 5, Bandar Puchong Jaya, 47170 Selangor, Malaysia.

Singapore Office
65, Sims Avenue, #04-03, Yi Xiu Factory Building, Singapore, 387418.



The definition of hardness has, in the past, caused misunderstandings within the paint industry. Most coatings are viscoelastic, and hence will indent to some extent.

DIN 55 945 defines hardness as follows:
Hardness is the resistance of a coating to a mechanical force, such as pressure, rubbing or scratching.
In practice, different testing methods are used:

Wolff-Wilborn Pencil Hardness Tester

Buchholz Indentation Tester


Pendulum Hardness Tester

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