Pure polyester curing agent KC552 is composed of β-hydroxyalkyl amide. It is an excellent curing agent for pure polyester weather-resistant powder coatings. It can also be used to cure indoor carboxyl polyesters, and the coating film has good performance. This product is a substitute for TGIC curing agent. It has the characteristics of low toxicity, non-irritating skin and fast curing speed. The powder coating produced has excellent outdoor performance and is a real green and environmentally friendly high-quality product.
1)Typical Properties: Skin-friendly;
Environment friendly; Low toxicity;
Shorten curing time;
Offer excellent gloss stability;
Outstanding flow and surface characteristics; Superior mechanical properties;
High performance for outdoor application.
2) Special Features and Benefits
Shorten curing time. High performance for outdoor application.
HAA is used for curing agents of carboxyl polyester resins
(acid value: 20-70mgKOH/g,30mgKOH/g for the best) or pure polyester. The curing requirement is 180ºC*15min.
Avoid using benzoin to produce white powder coating Avoid water and humility.
Leveling agent KC758
Degassing agent KC961
The above-recommended levels can be used for orientation.
Optimal levels are determined through a series of laboratory tests.