This is an informative video from Sika (The manufacturer of the liquid rubber known as Urethane that I have used for 20 years), and it demonstrates in a very effective way the importance of proper products and procedures needed for a safe and proper windshield installation. When properly used and cured, the Urethane has a tensile strength of up to 800 psi, “FMVSS212 Windshield mounting standards”. This video shows the force exerted on the windshield by the passenger side airbag in a front end collision.
This demonstrates the importance of a properly installed windshield and the role it plays in the deployment of the passenger side air bag. The passenger side airbag uses the windshield as a back board as it explodes out of the dash, and if the windshield is not properly installed, the airbag will not be directed towards the passenger. Also, the windshield is designed to keep the passengers in the vehicle in a collision of up to 30 miles an hour, “FMVSS208 Occupant crash protection standard”.