The Protective Coating multi purpose heavy duty waterproof epoxy white paste works as a bonding agent, sealant as well as a filler for many indoor and outdoor applications. It bonds materials such as fiberglass, wood, concrete, metals, brick, glass, ceramic or rubber. It also seals oil, gas and water tank leaks and plumbing and masonry cracks. Finally, it fills holes, castings and molds. It is recommended to use denatured alcohol to clean surfaces before applying the epoxy paste. After the cure, the product can be painted, drilled, machined, sanded or saw. It comes in a 2 oz. format.