Optimum Opti-Glass Clean & Protect Concentrate is a hyper-concentrated glass cleaner that contains an advanced polymer designed clean glass while adding repellency to rain, sleet and airborne contaminants. Optimum Opti-Glass Clean & Protect Concentrate can be used as a stand-alone glass sealant or as a booster to Optimum Opti-Glass Coating. As with other surface care protection products manufactured by Optimum Polymer Technologies, Opti-Glass Clean & Protect Concentrate is incredibly easy to use.