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Fitherm IG – Intumescent Gasket

Intumescent Gasket
reactive product intumescent product

Product Description

Fitherm® IG is a newly developed graphite based intumescent gasket. Designed and extruded in different forms, Fitherm® IG can seal the corresponding joint against air transfer and humidity under normal conditions. In case of fire Fitherm® IG expands to multiple times its original volume, forms a heat-isolating shield and stops the spreading of fire and hot gases. Fitherm® IG starts expanding at around 200°C.

approx. 1.35 g/cm3

Expansion pressure
approx. 1.4 N/mm3

Expansion temperature
starting from 200°C

Expansion factor
up to 9-fold its original thickness


Fitherm®  IG is developed for a wide range of applications where an intumescent material is necessary to maintain the system integrity and insulation in case of fire.
These systems are for example:

  • fire doors and glazing systems

  • fire safes

  • special containers

Fitherm® IG can be stored under normal room conditions. During handling and processing the wearing of protective gloves is recommended.

Fitherm® IG can be customised to special forms for multiple pplications.