Epoxy adhesives are a major part of the class of adhesives called "structural adhesives" or "engineering adhesives" (which also includes polyurethane, acrylic, cyanoacrylate, and other chemistries). These high performance adhesives are used in the construction of aircraft, automobiles, bicycles, boats, golf clubs, and other applications where high strength bonds are required. Epoxy adhesives come as two part systems – resin and hardener, that must be mixed together prior to use. Alternatively use STANLEY Epoxy which comes in a handy Syringe applicator