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How to Distinguish the Quality of Powder Coatings

2021-07-30

1. Identification Method of Spray Area of Powder Coatings:

Spraying area: the resin content of normal powder should be about 55-65%. Some poor powder coating factories use resin content less than 45% to replace inferior powder with good powder, increase filler to reduce cost and spraying area;
Comparison method: two same kind of powder coating spray the same product, see which one has more powder coating products, which one has less spraying products, and the one with less spraying products is poor;


2. Identification Method for Powder Coating Spraying Personnel:
Because the powder with good powder loading rate and working efficiency is easy to spray, the substrate can be covered by spraying 1-3 guns, with less secondary powder recovery and high working efficiency. Poor powder is not good to powder, spray 3-5 gun can cover the substrate, secondary recovery powder more, low efficiency. Therefore, the operator can determine the quality of powder coating by spraying powder rate, fall powder more or less.

3. Baking identification method of powder coatings:
Because the good powder does not produce a lot of smoke in the baking process, the poor powder has a lot of smoke in the baking process


The powder coating produced by milestone Industrial Co. Ltd. has high powder loading rate, good work efficiency, and will not produce a lot of smoke. The powder coating of the same kind has a large number of powder loading products, ensuring the interests of the majority of users.