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Bent tempered glass

Maximum glass size: 2400 (arc) x 4200 mm

Minimal glass dimension: 250 (arc) x 350 mm

Glass thickness: monolithic: 4 – 19 mm, laminated: almost every possible packets

Radii: cylinder sections, single-beam bending

Shapes: any

Types: monolithic, laminated or insulating glass

Application: tempered bent glass due to its properties is used wherever construction requires application of higher durability glass elements (eg. mounting glass sheets on holes, glass exposed to forces). Tempered glass is more secure than ordinary glass.

Technology: it consists in heating the mat to a high temperature (600 – 700 ºC), bending it in a special mechanical process to the required shape, and then rapidly cooling with compressed air. The glass can be further processed – lamination, joining

Features of glass: tempered glass is a safety glass. Thanks to the hardening process, internal stress changes, increasing its resistance to mechanical (bending, shock, impact) and thermal factors (temperature differences). When the glass’s strength is exceeded, it breaks into small pieces, reducing the risk of injury. Glass edge machining and drilling of all types of holes can only be done before the toughening process.

“Heat Soak Test” – spontaneous cracking of tempered glazing cannot be ruled out. In order to maintain the stability of the structure and its components, both internal and external, and the safety of users, the consequences of this risk should always be considered. The risk of self-breaking glass can be significantly reduced by using additional heat treatment of tempered glass called “Heat Soak Test”. This process involves placing glass elements in the furnace and subjecting them to specific temperatures.


Shock resistance – the increased resistance of tempered glass to shocks results in resistance of the glass to a 0,5 kg steel ball falling from the height of 0.3 meters. For comparison, it is worth adding that the same sphere breaks 8 mm of non-tempered glass falling from a height of 0.3 meters.

bending resistance – toughened glass presents significantly higher bending resistance than non-toughened glass. This resistance is characterized by the fact that the bending stress reaches 120 MPa.

resistance to thermal stress – tempered glass is resistant to temperatures reaching up to 200°C.

Crushing – in case of breakage, tempered glass breaks into very small pieces, thus reducing the risk of deep cuts. This interesting feature means that the glass can be used for all structures that require protection against the risk of injury in case of impact and breakage of the glass.