Devcon metal patch & fill, 50345, 3 oz. Tube metal patch & fill repairs broken, rusted or corroded metal. Builds up worn surfaces. Fixes gutter, grates, fencing, duct work, tanks, aluminum boats. Waterproof and resistant to oil, gasoline and most chemicals. Product is a flammable viscous paste with aromatic solvent odor. can be drilled, sanded or painted when fully cured. for use on: all metals glass ceramic