What IS toughened Glass?

So what is Toughened glass? Well, as the name might suggest, it is glass that is tough.

 

It’s basically just ordinary glass that has been processed to increase its strength. This can be done by either:

 

Controlled thermal or chemical treatments.

 

The term toughened glass is generally used to describe fully tempered glass but is sometimes used to describe heat strengthened glass as both types undergo a thermal 'toughening' process, however, we’ll come back to that a little bit more later.