Toughened safety glass

When glass is toughened, it is heated in a toughening furnace to close to its melting point (approx. 650–700°C, depending on the thickness of the glass) and then rapidly cooled. Thanks to this rapid cooling, compressive stress forms on the surface of the glass, making the structure significantly stronger than ordinary glass.

Toughening improves the glass’s resistance to impact, bending, high temperatures (max. 300°C) and rapid temperature changes. When broken, toughened glass shatters into small pieces with blunt edges, reducing the risk of injury.

Safety in accordance with standards

The toughened glass we supply meets the requirements of standard SFS-EN 12150.

The standard defines, among other things, tolerances, flatness, edge finishing, fragmentation, and the physical and mechanical properties required of safety glass used in construction.

Toughened glass is an excellent choice for applications where greater durability and safety than ordinary glass are required.

Typical applications include:

• doors and sliding doors
• shower screens and wet room solutions
• balustrades and balcony glazing
• façades and large window surfaces
• furniture and worktops
• industrial and equipment spaces where temperature fluctuations are significant

Toughened glass is also often used as part of laminated structures when the aim is to combine impact resistance with penetration protection.

Once glass has been toughened, it can no longer be cut, drilled or ground. For this reason, all processing — such as holes, notches and grinding — is carried out before toughening. During the toughening stage, the manufacturer, product name and any standard number are permanently marked on the glass.