Instrumescent Seals are those which expand (or intumesce) to several times their original size when activated by high temperatures. This action prevents the spread of flames and smoke from the fire affected area to other parts of a building.

Intumescent seals are available with or without a cold smoke seal in the form of a rubber gasket. The smokeseals provide a permanent barrier to smoke, acoustic and thermal applications and are particularly important as smoke travels faster and further than fire itself.

The seals are supplied with / without a self-adhesive backing tape as standard to facilitate quick and easy fitting. The seals are available mostly in black colour but can also be made available in a choice of colours to suit your requirements or blend with decor.

Tested for 120 / 60 / 30 minutes with 10mm, 12mm, 15mm, 20mm, 25mm and 30mm to BS 476 part 22 & 31.1 and CERTIFIRE Approval CF 276.