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FIRE RETARDENT BLOCK BOARD – IS 1659/IS 5509

IW ply Fire Retardant Blockboard meets IS 5509-2000 standards offering resistance to ignition, the surface spread of flames and flames penetration by suitable chemical treatment.

Fire retardant characterstics are a very important property to prevent propagation of fire at the initial stages.

IW ply Fire Retardant Board ensures

Flammability (The time taken for ignition ) of well over 30 minutes

Flame Penetration time(The time taken for flame penetration) of well over 30 Minutes

Rate of burning of well over 20 minutes

All the above products are available in a variety of thickness namely :12mm/18mm/19mm/22mm/25mm

In addition to thickness we can provide customized sizes namely: 8x4/8x3/7x4/7x3/6x4/6x3

 

S. No. Testing Parameters Results IS : 5509 Requirement IW Ply Result
1 Moisture Content Treatment 5 - 15%
Core veneer to be soaked in 1.25% solution of
Boric Acid OR 1.9% solution of Borax for 10 to 40 Minutes (depending on veneer thickness)
7.80%
COMPLIED
2 Glue Shear Strength
in Dry condition
Individual Min. 1100 Newton
Average Min. 1350 Newton
1430 Newton
1650 Newton
3 Glue Shear Strength
in Wet condition
Individual Min. 1100 Newton
Average Min. 1350 Newton
1430 Newton
1650 Newton
4 Flammability Time taken for Second lgnition > 30 Minutes
(For 12mm Thick plywood)
45 Minutes
5 Flame Penetration Time for Flame Penetration to be > 30 Minutes
(For 12mm Thick plywood)
55 Minutes