Cold Weld, 2 OZ, Original Adhesive Compound , It Works On Just About Any Surface Including Iron, Steel, Copper, Aluminum, Brass, Bronze, Pewter, Porcelain, Ceramic, Marble, Glass, Concrete, Fiberglass, Wood & Most Plastics, Just Squeeze Equal Parts From The 2 Separate 1 OZ Tubes Onto A Mixing Surface & Mix Thoroughly With A Putty Knife Or Similar Tool, Cures In 24 Hours & When Cured It Will Withstand Temperatures Of 600 Degrees, Waterproof, Petroleum, Chemical & Acid Resistant, Can Be Drilled, Tapped, Machined, Filed, Sanded & Painted, With A Tensile Strength Of 3960 PSI, Perfect Solution For Any Heavy Duty Adhesive Job, Tube.