Glass hardening

Production of hardened glass and hardening of the supplied material


We offer our customers processing and production tempered safety glass (ESG).

After the glass is manufactured to fit (as required), comes the glass tempering process, which consists in heating the glass to a temperature exceeding 600 ° C (typical temperature is around 620 ° C) and subsequent quenching flowing high pressure air. This will cool the glass surface within a few seconds, but the interior remains warm. Thus, the glass gains internal tension and, therefore, better properties.

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In the case of digital ceramic printing a sintered layer (ceramic glaze) is formed by the hardening process, which becomes a part of the glass surface, and is highly resistant to UV radiation, mechanical stress-scratching and weathering over the life of the glass. It is therefore ideally usable product for applications in exterior, interior, architecture, etc.

We also offer hardening of the supplied material (your own glasses) including transportation services.

Before the hardening process, we can print any of our own glass bytheme which can be selected from our database here,you can also use the theme of an architect, to create an individual motif by our graphic designer.

Of course, washing glasses before the hardening process, the vertical glass cleaner MALNATI perfectly cleans the glass from any dirt.

náhrobní desky

The hardening furnance is capable of quenching glass with a thickness of 5 – 19 mm
min. glass size 300 x 200 mm
max. glass size 3000 x 1600 mm

The heat treatment will result in high impact resistance and thermal shock, and high heat resistance will ensure the use of glass in demanding conditions such as swimming pools, wellness, saunas or kitchens, partition walls, all-glass doors or facades.

Certificates and standards


Tempered glass

Initial type tests according to ČSN EN 12150-2:

  • test of decay according to ČSN EN 12150-1
  • bending strength test according to ČSN EN 1288-3

Certificate of thermally toughened glass (PDF | 0,3 MB)