Firestop with Actifoam withstands three-hour fire testA new version of the FIRSTO firestop with Actifoam fire resistant foam rubber has successfully withstood a fire test lasting three hours. The test, which was carried out by Underwriter’s Laboratories (Northbrook, USA), demonstrates that Beele Engineering’s Actifoam firestop continues to function under the severest possible fire load. Even when the firestop with Actifoam is positioned completely on the exposed side, no smoke emission occurs at the unexposed side during the first hour of the test. The certification for three hours fire resistance is valid for installations where the FIRSTO firestop is installed at the upper side of a floor or at both sides of a wall. When the firestop system is installed at the underside of a floor or at one side of a wall, the certificated fire resistance is two hours. In addition to their capacity to prevent the spread of fire and smoke, FIRSTO firestops are also capable of withstanding mechanical loads. The metal firestops are of modular construction, and are assembled in a simple way around the cable tray against the wall or on the floor. An important advantage of this firestop is the ease with which it enables cables to be added or removed at a later date.
Actifoam is used among other things for the purpose of filling openings in constructions. In the case of an outbreak of fire, the openings will be completely closed off by the expanding rubber. Due to its closed cell structure, volume expansion will occur only at the seat of the fire. This non-intumescent process ensures that the expansion is not accompanied by any large-scale smoke formation. As a result of its closed cell structure, Actifoam moreover possesses good thermal insulation properties. Actifoam will not absorb any moisture and has been tested for 24 hours at 2.5 bar water pressure. FIRSTO and Actifoam have been developed by Beele Engineering of Aalten*) and are marketed in the United States by CSD Sealing Systems of Melrose, Mass. Actifoam Fire Behavior.pdf (requires: Adobe Acrobat) For additional information about Actifoam, please contact us. *) Beunkdijk 11, 7122 NZ Aalten, the Netherlands, tel. +31 543
461629, fax +31 543 461786 |
