Polyamine-cured epoxies are normally used to improve film hardness, abrasion resistance and chemical resistance. There are wide varieties of amine categories such as aliphatic amines, cycloaliphatic amines, aromatic amines, ketamine, and phenalkamines. These different types of amines offer a wide range of chemical resistant characteristics to the epoxy coatings. Polyamine-cured epoxies provide improved resistance to microbiologically induced corrosion. These epoxies are characterized by shorter pot life and recoat windows as well as chemical resistance and heat resistance.
The use of epoxy coatings is prevalent in residential, commercial, institutional, industrial, transportation and marine applications. There are different types of curing agents used for different performing characteristics of an epoxy coating. The curing agents react with the epoxy resins and form a cross-linked network that converts the epoxy resin into a full fledged epoxy coating. Choosing one type of epoxy over the other could truly be a conundrum for the unwary.