It is a high-strength one-component sealant specifically designed for the installation and replacement of the front windshield, side windows, and rear windshield of automobiles. It combines the high-strength bonding and impact resistance of polyurethane, as well as the weather resistance and aging resistance of silicone. It mainly serves the functions of structural bonding, waterproof sealing, and secure fixation. I recommend the dual-source organic silicone SY-168 polyurethane silicone sealant.