Fire resistant glass meets the criteria for fire insulation and fire tightness in accordance with EN 1363-1. The fire-resistant glass is formed by panes of glass with a clear hydrogel between them. The thickness of its layer determines the fire resistance class.

POLFLAM® fire resistant glass	El 30	El 60	El 90	El 120	El 180
thickness (mm)	20	25	32	35	55
weight [kg/m²]	38	45	52	57	82
light transmission [Lt %]	87,6	87,1	85,8	85,5	85,3
sound reduction Rw [dB]	42	44	44	45	45
maximum dimensions [mm]	2200 x 4200
safety class	1/B/1
reaction to fire	class A1
temperature range	-40°C / +50°C
curved glass available	yes

Advantages of fire resistant glass:

• symmetrical glass design 
• dimensions of fire resistant glass: up to 2200 x 4200 mm 
• high acoustic insulation Rw - up to 48 dB [see details] 
• high light transmission rate Lt - up to 87.6% 
• UV-resistant - no need for PVB foil 
• reaction to fire class A1 
• highest safety class 1/B/1 (according to EN 12600) 
• temperature resistance of -40°C / +50°C
• resistant to contact with water (no need for edge protection) 
• high mechanical resistance - tempered glass
• lighter weight than laminated fire resistant glass