PFC Corofil Open State Barrier COSB 25

PFC Corofil Open State Barriers combine non-combustible high-density stone wool with a high expansion intumescent strip fixed to the outer face. Depending on the product ordered, it will be supplied either red or black polythene shrink wrapped or foil encapsulated.

PFC Corofil Open State Barrier COSB 25 is designed to close off air gaps of 25mm, the COSB 44 product closes off air gaps of 44mm. The intumescent strip will expand on heating to close off the air gap between the barrier and inner surface of the facade.

Galvanised steel brackets are supplied as standard, stainless steel brackets can be ordered separately if required.

• Air gap of 25mm
• Provides up to 180 minutes fire integrity performance
• Provides up to 120 minutes insulation
• Suitable for cavities up to 450mm 
• Third party certified
• Tested in accordance with ASFP TGD19 and to the general principles of EN1363-1

Please refer to the manufacturer’s documentation for details on fire performance.

Product code : 35PACOSB25