Tempered safety glass is a specially heat-treated pane that is manufactured in accordance with EN 12150.

The disc is heated to more than 600° and then quenched with air (= prestressed). As a result, the surface solidifies while the interior of the glass is still viscous. As a result of slower cooling, this can contract more than the surface.

As a result of the structural differences, the interior of the glass (small volume, closed structure) places the surface of the glass (large volume, open structure) under compressive stress.

The process gives the glass an increased Push and quick wit compared to normal flat glass. In addition, the tempered glass is less sensitive compared to large temperature differences within the disk.

After this process, it is no longer possible to process the glass: Edge processing, drilling and cutouts must be carried out before the tempering process.

If it breaks under heavy load, it breaks down into small loosely connected fragments. This significantly reduces the risk of injury compared to normal flat glass.

Simply put, ESG is more stable and if it does break, you can't seriously injure yourself, which is why we always use safety glass for our Griesshaber glass showers.