Diamond Fusion Glass Defender Glass Protection for ShowersProtect your new shower and treat your new shower glass with Diamond Fusion Glass Defender before it leaves the factory. Glass Defender is actually two incredibly thin coats, with layer one creating the permanent barrier to glass damage and layer two then capping that to give you the easy cleaning that we all want. Diamond Fusion Glass Defender is available for all new Clearlite Showers and Shower Door Sets ex factory (excludes Cezanne which can be