Basic Types of Powder Coatings

Powder coating is a kind of solid powder synthetic resin coating composed of solid resin, pigment, filler and additives. Different from common solvent based coatings and waterborne coatings, its dispersing medium is not solvent and water, but air. It has the characteristics of no solvent pollution, 100% film formation and low energy consumption.

Powder coating is a completely different form from most coatings. It exists as a very fine powder. Because no solvent is used, it is called powder coating. The main characteristics of powder coatings are harmless, high efficiency, resource saving and environmental protection.

There are two kinds of powder coatings: thermoplastic powder coatings and thermosetting powder coatings.
1) Thermoplastic powder coating is composed of thermoplastic resin, pigment, filler, plasticizer and stabilizer. Thermoplastic powder coatings include: polyethylene, polypropylene, chlorinated polyether, polyamide, polyester, polyvinyl chloride, cellulose, polyester, etc.

2) Thermosetting powder coatings are composed of thermosetting resins, pigments, fillers, curing agents and additives. Thermosetting powder coatings include: epoxy resin system, polyester system, epoxy polyester system, polyurethane system, acrylic resin system, etc.