Is GRANUTEC® vermiculite fire resistant?

Yes, GRANUTEC® vermiculite is naturally non-combustible. It withstands temperatures up to 1100°C without degrading or releasing toxic fumes.

This property comes from its lamellar mineral structure and low thermal conductivity. It is widely used in passive fire protection systems, including sprayable coatings, prefabricated panels, fire doors, and fire-resistant plasters.

Vermiculite also plays a key role in refractory concrete formulations for high-temperature environments. Its dimensional and chemical stability ensures long-term fire resistance.