Tempered glass is manufactured through a process of controlled heating and rapid cooling with specially designed machines, making it harder than normal glass. Thermally treated (tempered), lending it three outstanding characteristics. The tensile strength is four to five times greater than annealed glass of the same thickness allowing it to handle much higher suction or blunt impact forces.
Tempering also makes glass more resistant to severe, short- term fluctuations in hot and cold temperatures, as well as enhancing its capability to handle large differences in temperature within the pane of glass itself. However, should failure occur due to overloading, the glass will fracture into a blunt-edged mass of loosely connected pieces that pose a lesser risk of injury than the sharp-edged shards produced by shattered conventional glass. It is also available to have in house Heat Soak Test upon customer request.