AF SLEEVE B
AF SLEEVE B is an intumescent stripe designed to seal the openings that allow the passage of metal pipes protected by caps made of polystyrene or polyurethane (ie. Armaflex® type). It provides impermeability to smoke and hot gases and it grants thermal insulation for 120/180 minutes (EI 120/EI 180) in accordance with the European Standard EN 1366-3.
AF SLEEVE B is made of a highly thermo-expansive material which, under the action of heat, increases its volume and fills the space left by the combustion of the insulating coating.