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Heat Strengthened

Heat Strengthened

Like toughened heat strengthened is heat treated but not to the same extent. The result is a glass that is resistant to thermal shock, is flatter than normal toughened glass, but is not a safety glass. When heat strengthened glass is broken it breaks into a small number of large pieces; similar to annealed glass.

Heat-strengthened glass does not require heat soaking.The relevant standard for heat strengthened glass is BS EN 1863.