Poorboys World Iron Remover is the perfect solution to remove ferrous metal iron contamination from your vehicle\'s exterior surfaces. Iron Remover from Poorboys World may be used on all exterior painted surfaces, wheels, plastic and chrome. Iron Remover produces a colour change as it is breaking up, loosening and dissolving ferrous metals - this is a chemical reaction that occurs when the product comes into contact with any iron particles. This product will turn red/purple when sprayed onto a surface that is contaminated with iron particles. This is most easily seen on lighter colour vehicles but decontamination performance is equal on all colours. This let\'s you know that iron is present and Poorboys World Iron Remover is working to remove iron particle contamination.