This polyurethane automotive windshield sealant is a high-performance, single-component, moisture-curing adhesive specifically engineered for bonding and sealing automotive windshields, rear windows, and sunroofs in vehicle manufacturing, repair, and maintenance scenarios; it boasts exceptional adhesion to a wide range of substrates including glass, metal, and painted surfaces without the need for primer in most cases, delivers outstanding weather resistance, UV stability, and chemical resistance to withstand harsh environmental conditions such as extreme temperature fluctuations, heavy rainfall, and road salt corrosion, while its flexible elastic recovery ensures long-term sealing integrity and effectively absorbs vibrations and shocks during vehicle operation, thus preventing water leakage, air infiltration, and noise transmission for enhanced driving comfort and safety.
Features
Single-component, moisture-curing formula for convenient on-site application without mixing
Excellent primerless adhesion to glass, steel, aluminum, and automotive-grade painted surfaces
Superior weatherability, UV resistance, and anti-aging properties for 10+ years of service life
High elasticity and elongation rate, capable of withstanding dynamic vehicle vibrations and thermal expansion/contraction
Fast curing speed at room temperature, enabling quick windshield installation and reducing repair downtime
Low VOC content, compliant with international automotive industry environmental standards (e.g., REACH, RoHS)
Water-proof, dust-proof, and sound-insulating performance to improve overall vehicle sealing effect
Applications
Bonding and sealing of windshields, rear windows, and side windows in passenger cars, commercial vehicles, and heavy-duty trucks
Installation and sealing of sunroofs, panoramic roofs, and triangular windows in new car production lines
Repair and replacement of damaged or aging windshield sealants in auto repair shops and 4S stores
Sealing of automotive glass accessories such as decorative strips, rain sensors, and camera mounting bases
Sealing and bonding of special vehicle glass (e.g., armored vehicles, construction machinery vehicles) for enhanced structural stability