JS-311 is a single-component polyurethane sealant that cured at room temperature and exhibits excellent bonding properties. It reacts with moisture in the air to curing and form an elastomer with outstanding properties, including high strength, resistance to aging and vibration fatigue, as well as protection against low-temperature corrosion. This sealant serves to directly bond and seal car window glass, as well as bond and seal several types of materials, including fiberglass accessories, car body steel plates, aluminum plates, and more.