Selection of Curing Agent for Raw Materials of thermosetting powder coatings

Thermosetting powder coating is composed of resin, curing agent, pigment, filler and other additives. In addition to the selection of resin is very important, because curing agent is an important element of resin modification and film-forming, it directly affects the quality of powder coatings and film properties. Therefore, it is very important to select a suitable curing agent.

1) The curing agent for thermosetting powder coatings is powder, granular or flake at room temperature.
2) Curing agent for thermosetting powder coatings has chemical and physical stability: it does not react with resin or other components during consumption or storage, and does not agglomerate. When spraying construction, baking to a given temperature can quickly solidify, film smooth, lubrication, full.
3) The curing agent used for thermosetting powder coating should be non-toxic (low toxic), non irritating, and it is better not to release peculiar smell and harmful smell in the baking film-forming process.

4) The curing agent used for thermosetting powder coatings is colorless, which can't make the coating color and affect the appearance of the coating.