Acid Rain Watermarks Remover With protective properties to make your glass and aluminum parts clean and shiny after application. With hydrophobic properties to sheet water off from your glass. Works well with: Shower door enclosures. Stainless mufflers, tubes, posts, displays. Establishments glass windows. Acid rain-marked house/car/RV windows. Aluminum radiators and intercoolers. Aluminum engine components. Chrome Wheels and parts.