Window glass is an essential part of a car's structure and safety. Most vehicles use tempered glass for their side windows and rear windshields, while the windshield is made of laminated glass. Tempered glass is treated with rapid heating and cooling processes, making it four to five times stronger than before the tempering process. When it breaks, it shatters into small pieces that mimic the shape of pebbles.
Laminated glass, on the other hand, is formed by a thin layer of vinyl between two layers of glass. This creates a thicker, stronger window that is not easy to break or shatter. It is considered one of the safest types of glass because it does not break into sharp pieces. Laminated glass is also used in cars as a standard safety measure to prevent accidents. The tempered glass used for passenger windows is more difficult to break than the standard type of glass used in homes.
This is because cars are exposed to bumps, rocks, and fender benders in their lifespan. Laminated glass is the most important part of a car and has been added to cars in recent years due to its increased strength and shatter resistance. Automotive glass also serves multiple purposes depending on consumer requirements, such as sunroofs that are designed to be UV-resistant. Automotive glass is exceptionally durable and responsible for 60% of the car's structural integrity in rollover accidents, while absorbing 45% of the crash impact during a head-on collision. It is also designed to be resistant to dust, dirt and impacts to prevent annoying particles from sticking to the glass and distorting the driver's line of sight.