Thermosetting powder coating refers to the thermosetting resin as a film forming material, adding the curing agent of crosslinking reaction after heating to form an insoluble and insoluble texture of hard coating. No matter how high the temperature is, the coating will not soften like the thermoplastic coating, but can only decompose.
Because the resin used in the thermosetting powder coating is a prepolymer with low polymerization degree and low molecular weight, the coating has good leveling property and good decoration, and the prepolymer with low molecular weight can form a network of cross-linked macromolecules after curing, so the coating has good corrosion resistance and mechanical properties. Therefore, the development of thermosetting powder coatings is particularly rapid.
