• Markets
    • All markets at a glance

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      We stand for flexibility and customer-tailored solutions:

       

      • Multi-Touch
      • Design
      • Haptics
      • Daylight Readability
      • Anti-Finger-Print
      • Easy-to-Clean
      • Tough Glass Surface

    • Our glass touch assemblies, our display glass and our structured cover glass for displays or instrument covers are available in all markets where glass is used as a versatile high-tech material, such as medical technology, industry automation as well as navigation and marine technology.

       

      With our expertise on the topics, trends and drivers of the respective markets, we are able to make a substantial contribution to the competitiveness of our customers.

  • Expertise
  • Company

    • From design to ready-to-install unit - everything is based on glass.

       

      Our expert teams located in southern Germany in Schwäbisch Hall and Syrgenstein are your one source partner and count among the leading providers of high-quality processed and coated technical glass in the world. We develop tailor-made solutions for you based on the qualities and desired function of your glass. Our modern processing and refining technologies turn glass into a versatile high-tech material.

  • Contact
    • Logo Berliner Glas Technical Glass

       

      Berliner Glas KG Herbert Kubatz GmbH & Co.

      Weidenhalde 20

      74523 Schwäbisch Hall, Germany

       

      Fon +49 791 93 295-0

      techglas [at] berlinerglas [dot] de

       

       

       

      Logo Berliner Glas Technical Glass

       

      Berliner Glas Herbert Kubatz GmbH

      & Co. KG Syrgenstein

      Giengener Strasse 16

      89428 Syrgenstein-Landshausen, Germany

       

      Fon +49 9077 95 895-0

      syrgenstein [at] berlinerglas [dot] de

    • Fast request

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  • News & Events

    • You can find all of the trade shows, press releases and publications of the Berliner Glas Group here.

       

      Click on one of the two items on the left to reach the respective overview on our Group site.

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  • Career

    • Bright people for enlightened ideas.


      Training programs and job openings at the sites of Berliner Glas Technical Glass are integrated into the career opportunities within the Berliner Glas Group.


      You can view them directly by clicking the link on the left.

Berliner Glas News and Events

Strengthening Process.

Increase Toughness, Control Fractures.

We make use of different strengthening processes in order to adapt glass, as a versatile, high-tech material, to its respective intended use.

Thermal tempering: Tempered safety glass (TSG)


 

thermally tempered glass - produced at Berliner Glas site in Schwaebisch Hall, Germany
Tempered safety glass consists of a single, specially thermally treated panel. The glass is heated to ca. 600 °C and then cooled suddenly. The center of the glass pulls back from the glass surface, which is being compressed. This process gives TSG an increased resistance to shocks and impacts. It is not sensitive to large changes in temperature and breaks into small, blunt pieces when exposed to extreme pressure. This reduces the risk of injury.

 

Thermal tempering: Semi-tempered glass (STG)

STG is exposed to a thermal tempering process just like TSG. However, the cooling process is slower, which results in less of a tension difference in the glass between the center and the surface. The resistance to bending lies somewhere between that of standard float glass and tempered safety glass. If broken, the resulting pieces resemble those of normal, non-hardened float glass.

 

Chemical strengthening: Chemically strengthened glass (CSG)

glass processing scheme - before and after hardening

If glass is exposed to a defined salt bath treatment, the resulting exchange of ions within a thin surface layer creates strong compressive stress that significantly improves the resistance properties of the glass. The chemical strengthening process is used primarily to strengthen thin glass up to 3 mm in thickness. The chemical strengthening process is ideal because the surface retains its flatness while also becoming more resistant to scratching.

 

 

 

Properties of tempered glasses

 
PropertiesFLOAT Glass UntreatedTSG Tempered Safety GlassSTG Semi Tempered GlassCSG Chemically Strength­ened Glass
Stone impact resistanceNo changeNo changeNo change~ +40 %
Flexural strength~ 45 N/mm²~ 120 N/mm²~ 70 N/mm²> 150 N/mm²
Tempera­ture shock resistance~ 40 K~ 150 K~ 100 K> 200 K
Cutting capabilityYesNoNoConditional
Appearance of fractureSplittingFriable structureSplittingSplitting
 
Appearance of fracture - Float glass untreated
Appearance of fracture - ESG Thermal tempered glass
Appearance of fracture - TVG Partially tempered glass
Appearance of fracture - CVG Chemically hardened glass

Contact our specialists

Please choose your contact partner, contact us directly using our contact form or let us call you back.

Technical Glass and Touch Modules
Miranda Stender
Fon +49 791 93295-83
miranda.stender [at] berlinerglas.de
Technical Glass and Touch Modules
Fabian Schmidt
Fon +49 791 93295-82
fabian.schmidt [at] berlinerglas.de
Technical Glass and Touch Modules
Vera Hopfenziz
Fon +49 791 93295-26
vera.hopfenziz [at] berlinerglas.de

Downloads

specifications for chemical strengthening
Data sheet

Chemical Strengthening

(257 KB)

specifications for thermal tempering
Data sheet

Thermal Tempering

(609 KB)

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