What type of adhesive is used for car windshields?
1 Answers
Polyurethane sealant is used for the installation of car windshields. Polyurethane sealant is a high-strength, high-modulus, adhesive-type polyurethane multi-purpose sealant. It is a single-component, room-temperature moisture-curing adhesive with high solid content, excellent weather resistance, and good elasticity. During and after the curing process, it does not produce any harmful substances and does not contaminate the substrate. If the windshield is not installed properly, the adhesive on both sides of the windshield may not bond tightly with the glass. For example, during high-speed driving, wind may enter the gap between the windshield and the car body, leading to increased noise inside the vehicle. Additionally, when driving on bumpy roads, you may feel a rattling or impact sound from the front of the car. After replacing the windshield, it takes one to three days for the adhesive to fully cure. During this period, to prevent air or water leaks, avoid washing the car for three days. After three days, remove the tape securing the windshield position. Drive smoothly, avoid sudden braking or rapid acceleration, and try to avoid excessively bumpy roads to prevent the windshield from shifting. Keep the maximum speed below 80 km/h. For the first three days after replacing the rear windshield, do not open the windows to prevent the rear windshield from shifting due to wind pressure. Also, avoid inserting parking permits or other cards into the gap between the front windshield and the dashboard.