16 oz. Sprays Rain Glass Sealant (NA-RAI16) by Nanoskin®. Rain provides a durable, invisible coating to your windshield giving it excellent Rain repellency. The invisible coating repels rain, sleet, and snow to maintain a high level of visibility, dramatically improving weather driving visibility. The treatment also makes for easy removal of ice, frost, salt, mud and bugs. Rain contains durable anti-static polymer which will help dust from settling on your glass. Rain also significantly improves scratch resistance.