Al Etch is an aluminum etcher and pre-paint preparation. The unique formula cleans, etches and removes corrosion from aluminum prior to painting or coating, leaving a clean surface with a slight tooth for better paint adhesion. Use on steel to remove rust without the flash rust problem. Always use Al Etch on your aluminum surfaces if you want your paint to stay. When painting steel surfaces, consider our product AL Etch X. Contact us for 6-gallon pail and 55-gallon drum quotes, as they must ship by truck freight.