Top selling The only water repellent that has no expiration date (usually 1-3 months). The wiper rubber has been proven to be compatible all over Japan. Experience pure fluorine. Clean X-G Water Repellent Coating is a chemical type water repellent coating that is made of fluorine water repellent agent. Silicone and rubber are poor compatible, but fluorine glass water repellent does not vibrate. It also has excellent durability and water repellent on the windshield for nearly a year. No special skills are required, so anyone can install it easily. Clean XG is pure fluorine. Please be aware that the wiper may be vibrated and flying, if the shape of a part of the import car is used with a special wiper.