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The degree of reaction of the base material in the thermosetting powder coating affects the impact strength, adhesion and flexibility of the coating
Imidazole and its derivatives are highly active catalysts, but they are prone to yellowing.
Conclusion: In the application of catalysts in thermosetting powder coatings: First, it can shorten the curing time, accelerate the reaction rate, and improve production efficiency; the second is to reduce the curing temperature, save energy costs, and make the application of coatings on heat-sensitive substrates possible