Scratch Hardness Testing

The optimised scratch hardness tester LINEARTESTER 249 Smart is intended, in addition to its original purpose of application, i. e. to establish the ability of a surfaces to resist damage by scratching, also for several other tests: Scribe/Scratch tests; To and frocycle abrasion tests; Crockmeter tests; MEK tests; tests determining the resistance against solvents in general or wipe test, respectively.

The LINEARTESTER 249 Smart is a tabletop device that is operated via a capacitive LCD display. The electromotive drive ensures a uniform forward motion of the slide. The test tool is lowered and lifted automatically when scratch/scribe tests are carried out. A multitude of different test tools are available (see table in the technical description below). The tools marked with (*) are made of Tungsten Carbide Steel, additionally covered with an extremely hard layer. Due to this layer’s “golden” appearance, any worn parts are visually very easy recognizable because the Tungsten Carbide Material under the “golden” layer has a distincly different color. With the optional available universal adapter set (see last page of the technical description) even also several user-specifc tool inserts can be used.