An unrivalled range of temperature resistance
Compared to conventional soda-lime safety glasses, PYRAN® tempered borosilicate glass has a far superior ability to withstand temperature differentials, which means it can be glazed with normal amounts of edge cover (15 ± 2 mm).
Larger panes, easier framing
With a higher softening temperature, PYRAN® is self-supporting for over 30 minutes, which enables the production of very large panes. These panes can be accommodated in relatively basic frame constructions to create a cleaner, more attractive and eye-catching appearance.
Longer fire resistance due to higher viscosity
The high viscosity and durability of borosilicate glass results in low flow behavior, which provides fire resistance times in excess of 90 minutes. The increased amount of edge cover also contributes to this impressive fire resistance.
No NiS crystals mean no sudden fractures
The chemical composition of borosilicate glass prevents the formation of nickel sulphide (NiS) crystals, which can embed within the glass and cause spontaneous fractures. By preventing their formation, PYRAN® offers another source of reassurance and reliability.