Different types of Glass used in Automobiles


By  AIS Windshield Experts

Category:  Windshield Glass ,Car Glass

Type of Car Glass

Glass has various applications deepening on the requirements of the area or the object. The glass used in automobiles vastly differs from the regular home windows. A car’s windshield is manufactured with exhaustive tests and technologies to render it suitable for harsh conditions. Auto glass, especially the windshield gives structural support to the roof of the car apart from protection against the exteriors.

You must have noticed that a car window doesn’t shatter into harmful shards like a home window. Latest technologies are used to make the glass shatter into harmless pieces in case it breaks.

Read on to find out about the two types of glass used for automobiles:

Laminated Glass

Laminated glass has been used for almost a century since the 1920s. It is simply two sheets of glass that are stuck together with a layer of plastic known as poly-vinyl buytrl (PVB), kind of like a sandwich. These layers are infused together using high temperatures. The glass is manufactured to provide maximum strength and it doesn’t shatter in case of an accident. While it may break upon impact, the PVB layer keeps the glass intact and sharp pieces of glass don’t fly around during an accident that may add to the injury. During head-on collisions, when a passenger might be thrown towards the windshield, laminated glass acts as a cushion. It is usually used for the front and rear windshields of the car.

When rocks or pebbles hit the windshield, they damage the exterior layer of the glass which makes windshield repair possible. Simply search windshield repair near me on Google and you can drive down to the nearest center to get it repaired. While laminated glass is mostly applied in automobiles, it has found its way into shops and offices as well.

Composition of Laminated Glass

Laminated glass, a vital element in modern car design, is made up of two layers of glass that encase a thin, tough layer of polyvinyl butyral (PVB). This specialized PVB interlayer serves as a powerful adhesive, fusing the glass sheets together. This innovative composition ensures that in the event of an impact, the glass remains adhered to the PVB layer, preventing it from shattering into dangerous shards. This not only enhances passenger safety by reducing the risk of injuries from flying glass fragments but also provides noise reduction and protection against harmful UV rays.

Application of Laminated Glass in Automobiles

Laminated glass finds extensive application in automobiles, primarily in windshields. Its unique composition, with a layer of polyvinyl butyral (PVB) sandwiched between two glass layers, provides remarkable safety benefits. During accidents, the glass remains held together, reducing the risk of sharp fragments harming passengers. Additionally, it acts as a barrier against harmful UV rays, safeguarding occupants and preventing interior fading. Laminated glass also contributes to a quieter cabin, dampening outside noise. These combined advantages make it an essential component, enhancing both the structural integrity and overall comfort of vehicles on the road.

Advantage Of Laminated Glass Over Tempered Glass

  • Laminated glass doesn't shatter into dangerous shards upon impact, reducing the risk of injuries during accidents.
  • Laminated glass is better suited for India's unpredictable and often rough road conditions, offering enhanced protection.
  • The noise-dampening properties of laminated glass create a quieter cabin, providing a more comfortable driving experience amidst the noise of Indian roads.
  • The laminated glass acts as a barrier against harsh UV rays, safeguarding passengers from sun exposure and skin damage.

Tempered Glass

Tempered glass is used for the side windows in the car. Glass is heated to high temperatures and suddenly cooled to create tempered glass. This process renders it 10 times stronger than regular glass. In an event where the glass is hit with something, it shatters into small dull-edged pebble-like pieces instead of shards that may harm the passengers. Tempered glass, unlike laminated glass, cannot be repaired in an accident since it breaks entirely. And since it cannot provide the cushion like laminated glass, it is not used for the windshields.

Just like laminated glass, tempered glass has found uses beyond the automobile industry.

Composition of a Tempered Glass

Tempered glass, a key player in vehicle safety, is crafted through a controlled heating and rapid cooling process. Composed of standard glass, it undergoes thermal treatment that strengthens its structure. The glass becomes malleable during heating, then swiftly cools to form a strong outer layer and compressed core. This process creates a glass that's about four times stronger than regular glass. If broken, tempered glass shatters into small, dull-edged pieces, minimizing injury risks. Its resilience against impacts and ability to crumble safely make it an essential choice for side and rear automobile windows, enhancing passenger protection on the road.

Application Of Tempered Glass in The Automobile

Tempered glass finds diverse applications in automobiles through a specialized process. Regular glass is first cut and shaped to fit the specific window requirements. It then undergoes a controlled thermal treatment, heated to high temperatures, and swiftly cooled using powerful air jets. This process creates a balanced internal tension, making the glass about four times stronger than ordinary glass. Once tempered, it's cut to final dimensions and fitted into side, rear, and panoramic windows. In case of breakage, tempered glass fractures into small, safe chunks, reducing injury risks. This makes it a pivotal choice for enhancing passenger safety and driving comfort.

Advantage Of Using Tempered Glass

  • Tempered glass shatters into small, dull-edged pieces upon breakage, minimizing the risk of severe injuries to occupants.
  • Tempered glass reduces glare from headlights and external sources, ensuring better visibility for the driver.
  • Its strength and resilience provide a stable barrier, contributing to a quieter cabin by reducing outside noise.
  • The glass breaks into small, safer pieces, minimizing the risk of serious cuts in case of breakage.
  • Tempered glass allows for sunroofs and panoramic roofs, to offer a clear view and natural light while maintaining safety.


What type of glass is used in cars?

In cars, laminated and tempered glass are commonly used. The front windshield typically uses laminated glass for enhanced safety. Car side windows typically use tempered glass due to its safety features and ability to shatter into safe pieces.

Which type of glass is used in car front windshield?

Laminated glass is used in car front windshields. It offers enhanced safety by holding together upon impact, minimizing the risk of injuries from shattered glass.

What type of glass is used in car side windows?

Car side windows typically use tempered glass. This type of glass is designed to shatter into small, safe pieces upon breakage, minimizing injury risks to passengers.

Which is better for a windshield, laminated or tempered glass?

Laminated glass is better for windshields. It holds together upon impact, reducing injury risks. Windshield Experts prioritize safety and offer hassle-free service, quality assurance, and speedy replacements with a 1-year warranty and doorstep service.

What is the best glass for a car windshield?

The best glass for a car windshield is laminated glass. It ensures passenger safety by holding together during accidents. Windshield Experts offer top-notch service, prioritize safety and quality, provide speedy replacements, a 1-year warranty, and convenient doorstep service.

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