There should be no oil stains after wipingSolvent resistance test: Take 95% medical alcohol cotton and wipe it back and forth 100 times (50 back and forth) with 1 kg of strength on the product coating. There should be no oil stains after wiping. Impact resistance test: Take the sprayed workpiece on the impact resistance test instrument, with a 1kg hamme...2020.09.08 02:45PTFE Fusing