Rust Off Removes Rust Stains From Most Any Surface In Sands! Just Spray And Watch As The Rust Stains Disappear!10Rust Off Removes Rust From Tools, Concrete, Fishing Gear, Automobiles/Cars, Boats, Engine Parts, Toilets/Tubs, Bikes, Motorcycles And Much More10Rust Off Can Also Be Used To Penetrate And Loosen Rusted Nuts, Screws, And Bolts10Works Equally As Well On Other Mineral Stains Including Iron, Calcium And Lime10Rust Off Is Used By Welders, Painters, Mechanics, Home Owners, Fishermen, Maintenance Personnel, Auto Restorers And More