Toughened Glass

Toughened glass is a type of safety glass that is processed by controlled thermal or chemical treatments to increase its strength compared to annealed glass. It is also known as tempered glass and it is used in a variety of applications, including car windshields, shower doors, and cell phone screens. Because it is stronger than regular glass, it is less likely to shatter or break if dropped or subjected to other impacts.

toughened glass

How is it Made?

It is made by heating the glass to extremely high temperatures and then cooling it rapidly. This process makes the tempered glass stronger and more resistant to shattering.
Toughened glass can also be made by chemically treating the surface of the glass. This treatment helps to make the glass more resistant to scratches and other damage.

What is it Used For?

Some of the most common uses for toughened glass include:

  • Car windshields
  • Shower doors
  • Cell phone screens
  • Tabletops
  • Shelving
  • Windows
  • Doors

Toughened glass is also often used in construction, as it is more resistant to shattering than regular glass. This makes it a good choice for windows, doors and awnings where there is a risk of impact or breakage.

Toughened Glass Pros

Here are some of the toughened glass pros:

  • much stronger than regular glass and is less likely to break
  • more resistant to scratches and other damage
  • breaks into pebble sized pieces which makes it safer than float glass which breaks into large shards
  • available in a range of tones and colours

Toughened Glass Pros

Here are some of the toughened glass cons:

  • more expensive than regular glass
  • cannot be cut or modified after manufacturing (which means it’s not possible to add a pet door to the panel at later stage)

How Can You Tell If A Piece Of Glass Is Toughened Or Not?

There are a few ways to tell if a piece of glass is toughened or not. First, look at the edges of the glass. If they are smooth and rounded, the glass is probably toughened. If the edges are sharp and angular, the glass is likely not toughened.

Another way to tell is to tap on the glass. Toughened glass will make a dull, muffled sound, while regular glass will have a clear, ringing sound.

Lastly, some panels will have an etched stamp on it which will tell you whether the glass panel has been toughened.

Toughened Glass Thickness for Windows

According to Australian standards AS/NZS 2208, the minimum thickness for framed toughened glass is 4mm; minimum thickness for partially framed and unframed toughened glass is 6mm.