Prestone Glass Cleaner is a heavy- duty, streak- free formula. It is excellent for cleaning all glass, mirrors and chrome. The perfect glass cleaner for both home and automotive use. Glass Cleaner contains specially selected surfactants that remove all varieties of commonly found deposits, including oily films and dirt. The foaming formula penetrates soils and films to lift them from the vehicle glass surface so they can be easily removed with a cloth or rag. In addition, the formula is designed to leave glass crystal clear and streak free.