Krud Kutter 32 Oz The Must for Rust is Easy to use. Spray, brush, or dip then rinse or wipe clean with a damp cloth to accept any primer, paint, or coating. Penetrates into every void of a metal surface and dissolves rust oxidation through chemical action. Protects bare metal for up to 12 months. Safe, fast and effective on new or rusted metal, galvanized aluminum, stainless steel, cast iron, chrome, brass and more. Unique rust remover and inhibitor, Removes and prevents rust in one step. Water based, Remove oil and grease from the metal to be treated.