Metal Pre-Clean - All Metals Icluding Stainless Steel - Gallon RefillAluminum isn't just tough to say, it's tough to clean too. Make the job easy with this corrosion killing organic formula. One spray then polish away with Aluminum Pre-Clean!Organic Salt formula. Non-flammable. Safer than traditional acids. Instantly removes heavily-encrusted corrosion, rust, calcium, lime, tarnish, grease, oil & water stains. Unmatched for its performance on aluminum (will not dull or haze aluminum), it is also safe for use on painted & fiberglass surfaces. Dot Classifications: Non Regulated.Safe On:GlassAluminumFiberglassStainless SteelPainted & Enamel finishesTileBrassCopperAcrylicsPlasticPerfect for Use On:Fuel TanksMag WheelsAlcoa WheelsDiamond PlateFramingStep PlateEngine PartsRusted SteelCar Wash Bays and WallsSnowmobile TunnelsFiberglass BoatsOutboard EnginesOutdrivesWater-Stained WindowsConcrete Equipment & TrucksNot For: Chrome, marble, some granite, Jura, Travertine or TerrazzoWARNING: This product can expose you to chemicals including Methanol which is known to the State of California to cause reproductive harm, and 1, 4-Dioxane which is known to the State of California to cause cancer. For more information go to P65Warnings.ca.gov.