Deep cleans glass & removes water spots Improves glass clarity and smoothness Removes wiper marks Perfect preparation before applying the Meguiar's G8504 Perfect Clarity Glass Sealant For best results, work with a Meguiar's X3080EU Even Coat Applicator Pad.This product is NOT a glass scratch remover The Meguiar's G8408EU Perfect Clarity Glass Polishing Compound safely removes bonded contaminants such as pollution, wiper marks, oily residue and water spots that normal glass cleaners leave behind. It is the perfect preparation before applying the Meguiar's G8504 Perfect Clarity Glass Sealant. For best results, work the glass compound with a Meguiar's X3080EU Even Coat Applicator Pad before removing the product and cleaning the glass with a clean Meguiar's X2020EU Supreme Shine Microfiber Towel.