Tempered Glass is generally five times stronger than standard float glass. In addition, it can withstand more significant temperature differences, reducing the risk of thermal breakage. If it breaks, the tempered Glass breaks down into thousands of tiny glass grains. This significantly reduces the risk of severe bodily injury. Thanks to these impact-resistant properties, you can guarantee the safety you want with Tempered Glass. Thermally toughened Glass is considered safety glass if it meets the relevant break pattern criteria. These criteria are set out in standard EN 12150, which also describes the test to be carried out to ascertain this broken pattern.
For reference, the main differences between float glass and thermally toughened Glass are
Thermal fracture risk
Thermal fracture is an overstressing of the Glass by different temperatures acting on the same glass surface. Solar control glass is at greater risk from such overstressing than clear Glass because it absorbs and is therefore heated by a certain amount of solar energy. The fracture risk is virtually eliminated by thermal tempering into toughened safety glass (TSG). The solar control glass should always be tempered for glass combinations that exhibit a radiation absorptance of more than 50 %.
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