Devcon 50345 Metal Patch and Fill Charcoal Gray 3.5 oz Tube

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.