How Long Does Epoxy Resin Take to Cure? What is Epoxy Resin? How Long Does Epoxy Resin Take to Cure? Epoxy resin is a thermosetting polymer formed from the reaction of an epoxide “resin” and a polyamine “hardener”. When mixed together, these chemicals undergo an exothermic reaction, resulting in a rigid, durable plastic. Epoxy is … Continue reading How Long Does Epoxy Resin Take to Cure?