Alum-A-New Acid is an aggressive aluminum brightener formulated for commercial truck wash applications. It is a sulfuric blend formulated to remove stains and oxidation on the dirtiest trailers without brushing. This will turn the aluminum bleach white. Do not use this on glass or polished aluminum. Do not allow this to dry prior to rinsing. Recommended dilution ratio of 10:1 using low pressure application system.