Envirograf FB70 Fire Barrier Curtain
A 1mm thick reinforced glass cloth curtain impregnated with insulation and intumescent coating, designed to be affixed to a range of surfaces and structures. Provides fire protection, the spread of flame, insulation, acoustic protection and smoke sealing.
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A 1mm thick reinforced glass cloth coated with yellow intumescent coating on one face. 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).
An effective barrier, providing up to 81 minutes integrity- Can be fixed to steel, wood and between concrete soffits and suspended ceilings with Envirograf® metal straps.
Can be wrapped around steel, trunking or wood as a fire barrier.
Non-fibrous and dust free, ideal for use in clean rooms, hospitals and computer suites.
Services can be passed through the curtain – use in conjunction with Envirograf® Products 13 or 16 to provide an effective penetration seal.
If additional insulation is required, please see our Insulated Fire Barrier Curtain (Product 54).
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.
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