Auto Finesse Iron Out iron-contaminate and fallout remover safely and effectively removes the tiny pieces of ferrous shrapnel that can embed itself into surfaces, targeting and dissolving them before significant damage can occur. The advanced, pH neutral, reactive gel formula is suitable to use on most exterior surfaces, including paintwork, aluminium (not bare aluminium), magnesium, stainless-steel, anodised finishes, chrome, glass, plastic, and even rubber. Iron Out also contains strong degreasing agents to help loosen road films, making it a powerful force in the decontamination process.