Patch-It Fast is a very easy-to-use UV- or sunlight-activated repair patch. It is fiberglass-reinforced polyester and creates long-lasting repairs. Perfect for making watertight, durable repairs on field equipment, engine parts, decking, fenders, gas cans, drain pipes, water tanks, PVC pipes, plastics, plexiglass, fiberglass, metal, wood, concrete, and more. Self-adhesive repair patch. UV-light activated. Non-toxic and non-flammable. Fiberglass reinforced. Repair any leak, hole or crack in minutes. Will adhere to most surfaces including metal, wood, rubber and plastic. Great for repair of electronic cabinets, fuel tanks and lines, antennas and many more!