The most common use of epichlorohydrin is Epoxy resins. Epichlorohydrin is a component used to initiate the polymerization of resins and allow them to harden. These resins are used in many industrial applications such as adhesives, coatings, composite materials and electroinsulating materials. Epichlorohydrin can be used as a crosslinker in the manufacture of some paints and coatings. This increases the durability and adhesion of paints and coatings.