To put it in simple terms, an epoxy resin is a composition of two primary materials, a resin, and a hardener, which upon combining will stimulate a chemical reaction whereby the resin will begin to solidify into a hardened structure within a few hours. The reason why we can make use of epoxy resin in so many different ways when it comes to arts and crafts has to do with the fact that it is completely malleable before it hardens, meaning we can shape it as we please to create all sorts of shapes and forms.