ACTIFOAM

ACTIFOAM foam rubber is based on the ACTIFIRE technology, which was developed by BEELE Engineering. It is the same technology that has been applied for several years now in RISE cable and pipe transits and the CSD Crusher Plug for plastic pipe penetrations. The ACTIFIRE technology gives sealant materials an active and fire retardant function in the event of fire. These are sealants that when exposed to high temperatures or fire will produce new fire retardant material (in large volume). 

The purpose of ACTIFIRE technology is to ensure that during a fire the sealant materials used will produce such an amount of fire retardant material that major deformations or displacements can easily be followed. As a result the penetration will remain fire-tight. Also, because of this "active material production" an elevated pressure will build up within the penetration, so that a virtually solid rubber mass is formed inside the penetration.

This ensures that the penetration's fire resistant capacity is effortlessly maintained. In addition, the "excess" of new material produced, together with all the softened plastic materials of the cable sheaths, is forced out of the penetration at the exposed side. The expansion caused in this way not only effectively extends the length of the penetration but it also compensates for the displacement and substantially increases the withstand time in a fire.