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Impact Resistance

Particularly for the protective function of coating materials the ability to withstand mechanical impacts is of vital importance. The concept of impact resistance refers to the application of Kinetic energy at a point and the effect of this on the adhesion of the coating.


Particularly for the protective function of coating materials the ability to withstand mechanical impacts is of vital importance. The concept of impact resistance refers to the application of Kinetic energy at a point and the effect of this on the adhesion of the coating.


 

Product Examples:

Stone Hammer Blow Testing Instrument acc. to VDA, MULTI GRIT TESTER 508 VDA

The MULTI GRIT TESTER 508 VDA is a stone hammer blow testing instrument that at first was developed in co-operation with the "Verband der Automobilindustrie (VDA)" (Association of the Automotive Industry) but now also meets the specifications of national and international standards. The MULTI GRIT TESTER 508 VDA is used to assess the ability of single and multiple layers of paints and similar coating materials to stand up to the impacts caused by small bodies of low mass hitting the specimen at high speed as experienced on road and rail vehicles and other equipment used in the transport field.

Stone Hammer Blow Testing Instrument acc. to SAE, MULTI GRIT TESTER 508 SAE

The MULTI GRIT TESTER 508 SAE features, like the VDA version, a good repeatability and reproducibility of the test results. The bombardment of the test panels is carried out with determinate grit (according to ASTM D 3170) which is accelerated by compressed air. Dependent of the specifications of further standards (mostly of car manufacturers) other shot materials can be used, too. The shot is entered automatically using an adjustable vibratory feed. On a multifunctional display the working pressure, the duration of the test, the setting of the vibratory feed and the number of tests conducted (total / temporary) can be read off alternatively. An air accumulator in the system eliminates effects of momentary pressure variations in the external compressed air supply.