Safety glass
Tested and certified safety glass for every need
Spridur ESG
Spridur toughened safety glass from SPRINZ has three characteristic properties:
- It has increased resistance to temperature changes.
- It offers three times greater bending strength and higher impact and shock resistance than float glass.
- In the event of breakage, Spridur ESG disintegrates into small, loose, blunt-edged fragments and therefore presents a low risk of injury.
These properties of single-pane safety glass are due to the tempering process: the float glass is heated to approx. 620°C in the tempering furnace while being constantly agitated and then "quenched" with cold air. As it cools, the surfaces cool faster than the core zone, resulting in zones with different tensions forming in the glass. These stress differences give Spridur toughened safety glass its special characteristics, which are defined in accordance with DIN EN 12150.
Application examples:
- Interior doors
- All-glass systems
- Insulating glazing
- Noise barriers
- Shower enclosures
Spridur ESG-H
Spridur ESG-H from SPRINZ is a special ESG (toughened safety glass) that undergoes the so-called "heat-soak test" and therefore complies with special safety regulations.
In rare cases, "spontaneous fractures" can occur in classic toughened safety glass, which are caused by visually invisible inclusions of nickel sulphide in the glass batch. The nickel sulphide can increase its volume under the influence of temperature and thus destroy the glass.
The heat-soak test largely prevents these "spontaneous fractures" as the toughened glass is heated to 280°C and this temperature is maintained for at least 4 hours in the heat-soak furnace.
The hot storage test for toughened safety glass is currently required by law in DIN 18516, Part 4 (ventilated façade).
Application examples:
- Façade glazing
- All-glass system (on request)
- Shower enclosure (on request)
- Interior doors (on request)
Spridur TVG
The partially toughened safety glass Spridur TVG is subjected to a thermal hardening process like Spridur ESG, but with a slower cooling process. It is also more resistant to thermal and mechanical stresses than float glass.
Spridur TVG is mainly used as laminated safety glass.
Application examples:
- point-fixed overhead glazing
- spandrel glazing
- glazing that must meet both thermal stresses and building regulations requirements
- applications that require a higher bending strength than float glass but a different fracture behavior than Spridur ESG
- glazing that needs to achieve higher fracture stability and residual load-bearing capacity in the Sprisafe LSG version
Spriform ESG
In the production of Spriform ESG, a float glass sheet is heated to the softening point and then formed using the free-forming process. After the bending process, the glass is quickly cooled, giving it the mechanical properties of toughened glass and complying with DIN EN 12150 requirements.
There are virtually no limits to the possible applications for Spriform ESG. Curved glazing is in great demand today: partly for functional reasons, partly as a design element on its own, right through to aesthetically sophisticated combinations of the two. We at SPRINZ use state-of-the-art bending technology to produce curved toughened safety glass of the highest quality.
Application examples:
- Shower cubicles
- Furniture
- Design glass
- Other interior and exterior applications such as store fitting
Sprisafe VSG
The use of SPRISAFE laminated safety glass is always necessary when special safety or static requirements are placed on the glass, e.g. for overhead glazing, burglary protection, sound insulation or fall-protection glazing. LSG consists of at least 2 panes of glass that are permanently bonded by means of a viscoplastic and tear-resistant PVB film (polyvinyl butyral film) or EVA film (ethylene vinyl acetate film). In the event of breakage, the fragments adhere to the film and reduce the risk of injury. SPRISAFE VSG is manufactured in accordance with DIN EN 14449 and is regularly monitored by an official testing institute.
Application examples:
- Walk-on glass
- safety glazing
Special combinations for special glazing:
- impact-resistant in accordance with DIN EN 356
- break-through-resistant in accordance with DIN EN 356
- bullet-resistant in accordance with DIN EN 1063
- with alarm loop
- ball impact-resistant