Multi-purpose and rock-hard unsaturated polyester body filler paste with resistance to water, salt water, oil, fuel and most weak acids and chemicals. Capable of repairing gasoline tanks, radiators, concrete, housings and castings and many more. Typical Applications • Repairs dents, pinholes and scratches • Can be drilled and tapped • Application areas: steel, aluminum, galvanized surfaces, glass fiber, copper and tin