Which Glass Is Considered High Impact Glass?

**Introduction
When it comes to building materials, glass is often a popular choice due to its aesthetic appeal and versatility. However, while glass can be beautiful, it can also be fragile and prone to shattering under impact. This is why high impact glass is often preferred in certain applications, such as in areas with high wind speeds or where security is a concern. But which glass is considered high impact glass? In this article, we will explore the different types of high impact glass and their properties.

**What is high impact glass?
High impact glass is a type of glass that is designed to withstand impacts without breaking or shattering. This is achieved through a process called tempering, which involves heating the glass to high temperatures and then rapidly cooling it with jets of air. This process creates a surface layer that is under tensile stress, which gives the glass its strength.

There are several types of high impact glass available on the market, each with its own unique set of properties and applications. The most common types of high impact glass are laminated glass, tempered glass, and ballistic glass.

**Laminated glass
Laminated glass is made by sandwiching a layer of polyvinyl butyral (PVB) between two or more sheets of glass. The layers are bonded together using heat and pressure, creating a single panel of glass that is much stronger than regular glass.

One of the main benefits of laminated glass is that it can withstand impacts without shattering. When laminated glass is hit, it may crack, but the PVB layer holds the glass together, preventing it from breaking apart. This makes laminated glass an ideal choice for applications where safety is a concern, such as in car windshields, skylights, and glass doors.

**Tempered glass
Tempered glass is made by heating the glass to high temperatures and then rapidly cooling it using jets of air. This process creates a surface layer that is under compression, which makes the glass stronger and more resistant to impacts.

Tempered glass is often used in applications where safety is a concern, such as in shower doors, railings, and table tops. When tempered glass is hit, it will shatter into small, rounded pieces, rather than sharp shards, reducing the risk of injury.

**Ballistic glass
Ballistic glass, also known as bulletproof glass, is designed to withstand bullets and other projectiles. It is made by sandwiching layers of polycarbonate or acrylic between two sheets of glass, creating a panel that is much thicker and heavier than regular glass.

Ballistic glass is commonly used in high-security applications, such as in banks, government buildings, and armored vehicles. When ballistic glass is hit with a bullet, the layers of plastic absorb the impact, effectively stopping the bullet from penetrating the glass.

**Conclusion
High impact glass is an important material for a variety of applications, from ensuring safety in public areas to providing high-security protection. Laminated glass, tempered glass, and ballistic glass are three popular types of high impact glass, each with its own set of properties and applications.

So, the answer to the question "Which glass is considered high impact glass?" is that it depends on the type of impact and the application. Laminated glass is ideal for preventing shattering and maintaining safety, tempered glass is ideal for reducing injury risk when shattered, and ballistic glass is ideal for high-security situations.