Optimum FerreX Iron Remover quickly dissolves ferrous oxides leaving your paint, wheels, glass and chrome squeaky clean and contaminant free. Optimum FerreX Iron Remover will also dissolve and remove other surface contaminants such as tar and wax at the same time. Optimum FerreX Iron Remover is a multi-purpose exterior cleaner that makes it FAST and EASY to remove the contaminants that hinder the true gloss potential of your vehicle’s paint.