Gliptone GT Iron Eater is a faster acting, gel formula that clings to surfaces providing added dwell time and exceptional cleaning action. GT Iron Eater is PH neutral making it a much safer alternative then traditional acid-based wheel cleaners and surface contaminant removers. Gliptone’s number one priority in formulating this product was to bring you a safe, powerful and cost effective solution with the lowest degree of ‘stinky, funk smell’ possible. The color indicator is a nice touch that helps visualize the cleaning process. Use on car paint, glass, plastic, and rims. Also safe on chrome, stainless and aluminum.