Which glass type is typically used for windshields?

Which glass type is typically used for windshields?

• A. Laminated Glass
• B. Tempered Glass
• C. Enhanced Protective Glass (EPG)
• D. Polycarbonate & Lexan

Answer: (A)

Windshields use laminated glass. This is made of two layers of glass with a plastic interlayer, typically polyvinyl butyral (PVB), sandwiched between them. The interlayer bonds the glass sheets together so, when impact occurs, the glass tends to stay in one piece rather than shattering into sharp, separate shards. This containment protects occupants and makes it safer for rescuers during extrication, while still providing a clear barrier and good visibility. Tempered glass, by contrast, is designed to shatter into many small pieces, which can be dangerous in a windshield and is why it’s usually used only for side and rear windows. Enhanced Protective Glass isn’t the standard windshield material in most vehicles, and using polycarbonate/Lexan, a plastic, isn’t typical for windshields due to scratching, heat sensitivity, and other practical drawbacks.

Windshields use laminated glass. This is made of two layers of glass with a plastic interlayer, typically polyvinyl butyral (PVB), sandwiched between them. The interlayer bonds the glass sheets together so, when impact occurs, the glass tends to stay in one piece rather than shattering into sharp, separate shards. This containment protects occupants and makes it safer for rescuers during extrication, while still providing a clear barrier and good visibility.

Tempered glass, by contrast, is designed to shatter into many small pieces, which can be dangerous in a windshield and is why it’s usually used only for side and rear windows. Enhanced Protective Glass isn’t the standard windshield material in most vehicles, and using polycarbonate/Lexan, a plastic, isn’t typical for windshields due to scratching, heat sensitivity, and other practical drawbacks.