Use INDUSTRO WELD as an adhesive, laminate, plug, filler, sealant, and electrical insulator. Squeeze out equal portions from the black and red tubes. Mix thoroughly. Clean surface to be bonded. Apply INDUSTRO WELD, and let it cure. That's all there is to it! What does it bond to? Virtually any combination of iron, steel, copper, aluminum, brass, bronze, pewter, porcelain, ceramic, marble, glass, plastic, concrete, fiberglass, wood, fabric, paper--just about any porous and non-porous material.