A concentrated blend of hydrofluoric and three other acids to clean and brighten aluminum. Do not allow aluminum brightener to contact glass, anodized aluminum, chrome or magnesium surfaces. For use on trailer, tank trucks, air conditioner fins and coils and other aluminum surfaces. Removes dirt, rust, scale, scum and diesel exhaust stains. May be used in a foam application system. Highly acidic; Use with extreme caution. Dilution 1:30 Read label fully and M.S.D.S. for warnings and precautions. CORROSIVE: POISON.