Rust-Oleum Stops Rust Gray Galvanizing Compound Spray can be applied to create a galvanized finish to galvanized metal and sheet metal. This 93% pure zinc coating applies a galvanized film with cathodic protection, which resists rusts, scratches and chips. Applies a galvanized finish to galvanized and sheet metalIdeal on interior / exterior galvanized steel, fences, gutters, trailers and moreOil based formula that is fast-drying, durable and corrosion-resistantDries to the touch in 15 minutes, can be recoated within 1 hour or after 24 hours and fully cured in 24 hours