Sonear Fire Retardant plywood has been developed through extensive R & D and a specialized manufacturing process. In the adverse event of a Fire, this IS: 5509 certified plywood delays the spread of fire due to its chemically treated slow burning properties. The low flammability, low rate of burning and higher flame penetration time provides “Safety” and “Comfort” in the adverse event of a Fire.
Areas of Application
All kinds of interior applications like furniture, cupboards, wardrobes, ceilings, panelling and packaging.
Testing Parameters  I.S. : 5509 Requirement  Sonear Infinity Results  
Moisture Content  5%15%  7.9 %  
Treatment  Core veneer to be soaked in 2% solution of Boric Acid solution of Borax for 40 Minutes (depending on veneer thickness)  Satisfactory  
Glue Shear Strength in Dry Condition  Individual Min 1100 Newton Average Min. 1350 Newton 
1360 Newton 1590 Newton 

Glue Shear Strength after Wet Condition  Individual Min 800 Newton Average Min. 1000 Newton 
1130 Newton 1280 Newton 

Glue Shear Strength in Mycological Test  Individual Min 800 Newton Average Min. 1000 Newton 
1080 Newton 1140 Newton 

Flammability  Time taken for Second Ignition > 30 Minutes (For 12mm Thick plywood)  44 Minutes  
Flame Penetration  Time for Flame Penetration to be > 30 Minutes (For 12mm Thick plywood)  52 Minutes  
Rate of Burning  To be > 20 Minutes  36 Minutes 