Envirograf FB70 Fire Barrier Curtain

Availability: In Stock


The Envirograf FB70 curtain is a 1.2mm thick by 1.22m wide curtain, which can be ordered per linear metre.

It can be attached to a wide variety of surfaces and structures, including trunking, steel and timber.

As this barrier is non-fibrous and dust-free, it is suitable for clean rooms, hospitals and computer suites.

The FB70 fire curtain comes in both acoustic and non-acoustic formats.

FB70 Fire Curtain

A 1.2mm thick reinforced glass cloth coated with yellow intumescent coating on one face. Envirograf’s FB70 Fire Curtain is available in 1220mm widths, as standard or acoustic versions. For use on steel and timber trusses and between concrete soffits and suspended ceilings. PRICED PER LINEAR METRE (maximum 40m per roll). 


  • This barrier provides up to 81 minutes integrity.
  • It can be fixed to many materials, including steel, wood and between concrete soffits and suspended ceilings, using Envirograf’s metal straps.
  • Alternatively, it wraps around steel, trunking and wood to create a fire barrier.
  • It is ideal for using in clean rooms, hospitals etc., as it is non-fibrous and dust free.
  • In many cases, services can pass through the curtain. For example, Envirograf’s pipe collars and multi-purpose fire box.
  • Please contact us if more insulation is required.

Application Instructions:

All curtains are supplied with sufficient adhesive for the 50 mm overlap. The adhesive can be applied to one face and pressed together, although it is best to apply a small layer to each face and apply

together, giving a much quicker hold.

Just hold together for approximately 1 minute, to allow the adhesive to grip. 1 litre of Adhesive is sufficient for 50 metres of curtain.

Should the Curtain be installed in a windy area, Envirograf ST50 or ST75 Class 0 Adhesive Tape can be applied over the glued joint to hold it more securely while the Adhesive dries.

For fixing the top, bottom and ends of the Curtain: For timber supports use Envirograf FB/T Battens, fixed through to the timber with 30 mm large head clout nails. For concrete, block or brick fixing, use

FB/C Metal Straps – 25 mm wide, with 2 mm holes every 300 mm apart. These can be fixed with spit nails, screws, pop rivets (steel) or self-tapping screws to the steel work.

Where cutting around services is required;

  1. Wrap around the service with a section of the curtain and adhere together using the adhesive.
  2. Cut a cross – X – in the barrier to allow the service through. Once the service is wrapped, adhere the cut area of the curtain to the wrapped service.
  3. If necessary, fit a patch over the curtain with the adhesive, using a section of the curtain as the patch.


For our other fire curtains, please click here.


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