This amazing Super-Hydrophobic Nano Glass Coating can be used on glass windshields, building windows, shower enclosures, and even mirrors. On Vehicle Windshields, it is designed to repel water for 3+ years, or up to ONE Million Wiper Wipes. Lasts up to 10 years on building windows. Just clean and maintain with soap and water, to keep the extreme hydrophobic properties viable. Installs in minutes.