Epoxy coatings and polyester coatings have significant differences in composition, use and performance.
Element
Epoxy coating is mainly composed of epoxy resin and amine curing agent. Epoxy resin is chemically stable and resistant to alkalis and oils, but has no ester bonds and therefore does not react with alkalis
Polyester coatings are synthesized through polymerization using polyols and acid anhydrides as the main raw materials. Polyester coatings can form acyclic and/or cyclic hydrogen bonds between polymer molecules, and have high mechanical wear resistance and toughness