It is a one-part polyurethane product formulated by Gorcci International. It reacts with moisture in the air to form a kind of elastomer with high strength, aging, vibration, low and corrosive resistance properties. PU Sealant was widely used to join the front, back and side glass of the cars and also can keep a steady balance between the glass and the paint on the bottom. Normally we need to use a sealant guns to press out when it shaped in a line or in bead.