Fire-preventing glass Pyrobelite 12

Fire-prevention Pyrobelite 12 glass - laminated glass with a few colorless intumescent layers. In case of fire, these layers change their physical characteristics and the glass turns into a rigid and opaque protective structure, allowing glazing to preserve the integrity and limit the degree of heat transfer heat flux. Fire-prevention glass Pirobelayt 12/12 EG provides two-way protection.

Technical characteristics of the Pyrobelite 12 fire-prevention glass:

  • According to GOST 53308-2009
  • Fire-resistant glazing of E60

* (E) integrity. guarantees lack of through cracks or openings through which the flame and products of burning can penetrate;
    (I) the heat-insulating ability, prevents the transfer of heat to the protected space by the radiation
   (W) limiting the density of heat flow

Fire resistance limit:

  • Integrity — 45 minutes (E60)
  • Heat insulation — 30 minutes (EI30)
Specifications EI20 / EW60  

Type of glazing


Use of


Thickness 12,3 mm
Thickness tolerance ± 1 mm
Weight  27 kg/m2
Tolerance for overall dimensions  ±2 mm
Light transmission (EN 410) xu / pv  86/8
The heat transfer coefficient (EN 673)  5,6 Вт/m2.K
Safety class (EN 12600) 

Class 2B2

The sound reduction index (EN 12758) Rw (C; Ctt)  36 (-1; -3) dB