Glass Tempering

TOUGHENED GLASS ESG

by DUBIEL VITRUM SP. Z O.O.

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Toughened glass is safety glass. It is denoted by the acronym ESG (from German, Einscheiben Sicherheitsglas). It features higher elasticity, mechanical, and thermal strength compared to annealed float glass; it is safer because when broken, it shatters into small, non-sharp fragments. Tempering glass involves heating it to a high temperature (620-680°C) and rapidly cooling it in a stream of compressed air. This process creates compressive stress in the surface layer, significantly increasing the glass's strength. At Dubiel Vitrum, the tempering process produces: Flat toughened ESG glass Bent glass with cylindrical shapes (safe ESG glass) Thermally strengthened TVG glass (so-called semi-toughened) Flat toughened ESG glass painted with cured ceramic paints (enamel paints applied to the entire surface or via screen printing).