A curing agent, also known as a hardener, curing agent, or setter, is a type of substance or mixture that promotes or controls the curing reaction. Resin curing is the process of irreversible changes in thermosetting resins through chemical reactions such as condensation, ring closure, addition, or catalysis. The curing is completed by adding a curing (crosslinking) agent.
A curing agent is an indispensable additive, no matter it is used as an adhesive, coating, or castable, a curing agent must be added, otherwise, the epoxy resin cannot be cured. The variety of curing agents has a great influence on the mechanical properties, heat resistance, water resistance, and corrosion resistance of the cured product.
