Multifoam 2K is an intumescent two-component polyurethane foam with fire retardant additives, for fire-resistant sealing of openings around cable trays, cable bundles, combustible and non-combustible pipes. The two-component foam prevents spread of fire and smoke in a fire through fire-resistant walls and floors. Multifoam 2K is designed for quick installation and to seal hard-to-reach penetrations. Multifoam 2K is part of the Mulcol® Multifoam 2K System. Multifoam 2K can be combined with the Multifoam Wrap to achieve fire-resistant seals up to 120 minutes on cable trays, ladders, electrical cables and cable bundles.