Epoxy resin is a versatile polymer material widely used in various industries and crafts The term E12 doesnt seem to be a standard designation for a type of epoxy resin Epoxy resins are typically identified by their chemical composition such as bisphenolA BPA epoxy bisphenolF BPF epoxy novolac epoxy etc or by their intended use like casting resin laminating resin adhesive resin etc
Could you provide more context or specify what you mean by E12 epoxy resin