GEOFLAM® DC are pre-moulded elements used in the protection of metal columns for passive fire protection and are tested in accordance with EN 13501-1.

GEOFLAM® DC with a thickness of 30 mm and a length of 3 ml are available for outer diameters of 300 or 400 mm. They are used to protect the metal columns of horizontal ducts R 60 to 180: fire resistance 1 to 3 hours. GEOFLAM® DC half-shells are assembled by gluing and “polochonnage”*.

*Polochonnage: technique which consists of using GEOCOL® glue, sisal fibre and GEOPLÂTRE® N plaster to assemble the elements.


Geostaff gypsum plaster fire protection accessory for passive fire protection


Pre-moulded elements of 30 mm thickness and variable dimensions used in the protection of metal columns.

Technical notice