Is the Car Windshield Made of Tempered Glass?
2 Answers
Currently, car windshields primarily consist of laminated tempered glass and laminated zone-tempered glass, which can withstand strong impacts. Below is a relevant introduction to car windshields: 1. Curved Windshield: Car windshields have curved deformations at the edges where they contact the car body. This curvature causes external scenery to distort when viewed through it, affecting the vision of passengers inside the car and creating a deceleration effect. It's similar to looking at a newspaper through a magnifying glass—objects in the center appear to move slower, while those at the edges appear to move faster. Additionally, the edges of the windshield feature gradually fading dotted black decorative borders, which also contribute to this effect. 2. Function of the Curvature: While driving, the curvature of the glass causes the movement of reference objects on either side of the car to gradually slow down, giving the impression that the windshield has a decelerating effect.
I've been working in auto repair for many years and often encounter car owners asking this question. The windshield is actually not ordinary tempered glass; it uses a laminated glass structure, which consists of two layers of glass with a PVB resin film sandwiched in between. This design is particularly important—if hit by a stone or involved in a collision, the glass will crack into a spider-web pattern but won't shatter, preventing fragments from flying and injuring the driver or passengers. In contrast, the rear and side windows use tempered glass, which breaks into small granules. Current regulations mandate the use of laminated glass for windshields to ensure driving safety. I remember once replacing a windshield for a customer and discovering they had installed cheap, substandard tempered glass to save money. It nearly caused an accident when a branch scratched it during rainy weather. That's why I always recommend installing OEM-certified laminated glass products.
