Envirograf Intumescent Fire and Smoke Stop Pillow

Availability: In Stock


A reinforced glass cloth intumescent pillow filled with fireproof sponge and intumescent material which expands to 3 times its original size in a fire, fire stopping gaps around services in walls, floors or ceilings.

Pillows will expand at low pressure, locking together to seal off fire without pushing services out of alignment.

Expanding intumescent pillows to seal gaps and voids around services. Sizes are all in mm.


A true intumescent pillow made from a hardwearing coated cloth pillow filled with pieces of fireproof sponge and Envirograf® intumescent material- it is soft and pliable, enabling them to be wrapped around services and to fill awkward areas. The pillows not only give fire stopping and smoke sealing, but will expand to 3 times their size in a fire, but are not pressurised, so they will not push each other out, they will just lock together. Can be used in computer rooms and sterile areas, as a permanent protection system or temporary, whilst work is being carried out. Special sizes can be made to order, please phone for a quote.


Ideal for awkward gaps as it can be compressed.

A good temporary solution, providing up to 2 hours fire resistance.

Can be fitted with cord and 100mm retention tag to fix the pillows in place as a permanent solution (please contact us  for a quote if eyelet tags and a cord are required to join them together).

Great for use around cables which are regularly adjusted.

Non-fibrous, dust-free materials are suitable for use in sterile areas or clean rooms.

Application Instructions:

The pillows can be folded to fit between pipes and services.

For vertical openings i.e. in walls, build the pillows in rows and staggered information, compressing each pillow to ensure all gaps are filled to stop the passage of smoke.

For horizontal openings i.e. floors, build together as in walls, but where openings are greater than 700mm x 400mm, to prevent sagging, supply additional support by fixing wire mesh into the opening first.


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