The Must For Rust, Gallon Rust Inhibitor & Remover, Removes Rust & Protects Metal, Dissolves Rust & Oxidation Leaving A Clean Metal Surface For Painting, Inhibits Future Rust Formation Up To 12 Months If Left Bare, Use On Metal, Galvanized, Aluminum, Stainless Steel, Chrome, Brass, Concrete, Brick, Porcelain, Ceramic, & More, Spray, Brush, Or Dip, Works In 15 To 30 Minutes, Safe To Use, Water Based Product, No Harsh Or Caustic Chemicals, Covers 300 To 500 SQFT Per Gallon.