Thermosetting Plastic Powders
Thermosetting plastic is the most used material for powder coating, and the common types used for aluminum parts are: Epoxy, Polyester, and PU. During baking, it melts and cures, forming a permanent coating on aluminum through a chemical process called crosslinking. This coating is hard, has overall better wear and chemical resistance than thermoplastic powder.
Thermoplastic Powders
Unlike thermosetting plastic, thermoplastic(PE, PVC) only changes physically during powder coating, so the process is reversible. The resulting coating is softer and mainly used in specific functional applications, such as a protection layer for aluminum bushings, tubes, and wire.
