Optimum Opti-Glass Clean & Protect Spray is a ready to use spray glass cleaner that contains a combination of mild cleaners and an advanced polymer that bonds to glass and other silica based surfaces to add water repellency by lowering the surface tension and protect glass by increasing the coefficient of slip. Optimum Opti-Glass Clean & Protect can be used as a stand-alone glass sealant or as a booster to Optimum Opti-Glass Coating. Regular use will ensure improved visibility and increased chip resistance to make driving safer and more enjoyable. Additionally Optimum Opti-Glass Clean & Protect will prevent ice or snow from bonding to the glass surfaces. NOT FOR INTERIOR GLASS.