How can I determine a good adhesion strength range for coatings on polymer surfaces, such as DLC on polymer substrates? Is there a specific threshold for adhesion strength (from T-peel tests) above which it is considered adequate, particularly when the coating needs to function as part of a frictional pair?
Portable or tabletop adhesion testers are available on the market. They utilize peel-off test
There is a difference between adhesion and wear resistance (depends on hardness, surface roughness, which is the counterbody, ...). Of course if you have bad adhesion, you will not have good wear resistance ...
Do the cross-hatch/Scotch tape test: in principle you should have no release of coating for good adhesion ...
Amal Thomas To determine the adhesion, pull of test can be done to determine it, there several range of devices available in market ELCO METER 106 is one of them, you can refer these standards which is relevant to the subject ISO 4624 or ASTM D4541.
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