Clear half tempered semi toughened heat strengthened glass

Specifications

Heat Strengthened Glass Characteristics

Its strength is approximately two times that of annealed (non-tempered) glass of the same thickness.

It offers increased resistance to wind and snow loads as well as high thermal stresses.

Glass breaks into large, slightly sharp fragments.

The glass maintains its colour, its chemical properties and its light transmittance after heat treating.

Heat strengthened glass cannot be cut or drilled after heat-strengthening and any alterations, such as edge grinding, sand blasting or acid etching, can cause premature failure.

Heat Strengthened vs. Tempered Glass

The similarities between the two include:

• Production using the same processing equipment.
• Heating the glass to approximately 1,200 degrees Fahrenheit, then force-cooling it to create surface and edge compression.

The differences are as follows:

• With tempered glass, the cooling process is accelerated to create higher surface compression (the dimension of force or energy per unit area) and/or edge compression in the glass. This is the process that makes the glass four to five times stronger and safer than annealed or untreated glass. As a result, tempered glass is less likely to experience a thermal break.
• With heat-strengthened glass, the cooling process is slower, which means the compression strength is lower. In the end, heat-strengthened glass is approximately twice as strong as annealed, or untreated, glass.

Applications of Heat Strengthened Glass

Glass window and door

Glass railing and balustrade

Glass partition wall

Glass shower door