Evaluation of scratch resistance of PUSHEN ZHY automatic Scratch meter

ZHY automatic scratch Tester

Used to test the scratch resistance of metal surface coatings, such as coil coatings, tin can inks, metallic paints, automotive surface coatings, etc.

It is also suitable for the evaluation of the surface scratch resistance of a single coating or a composite coating of a color-coated board.

The scratch resistance of the coating is evaluated by the maximum load that the spherical steel needle scratches the coating or does not scratch the coating under a certain weight.

During the test, use a hemispherical stylus with a diameter of 1mm to slowly touch the surface to be tested, and draw a scratch about 10cm long. 

Depending on the purpose of the test and the applied load, different degrees of penetration can be observed, ranging from surface marks to effective penetration. 

The motor drives the sample to lightly touch the stylus, and the stylus runs across the sample and stops automatically when it reaches the end point.

The contact between the stylus and the metal substrate is identified by a voltmeter. When the coating of the tested sample is scratched, the ammeter shows that there is current passing.

Standards

GB/T 9279-2007 Paints and varnishes scratch test

ISO 1518, 12137-2

ASTM D 2197, D 5178

Scratch meter X1, spare needle X2, load weight 1000g/500g/200g × 1, 100g/50g × 2, instruction manual X1

[Note] Because the manufacturer's packaging may be updated or upgraded, the detailed packaging list shall be subject to the latest standard configuration of the manufacturer.