REGUFOAM FR is a sound-insulating, flame-retardant polyurethane foam with a mixed-cell structure. The material is available in various thicknesses, lengths and widths and is intended for use in rail vehicles as well as for structure-borne sound decoupling, vibration isolation and shock protection. The products of the REGUFOAM FR series exhibit defined static and dynamic load ranges, characterised bedding curves and specific natural frequency behaviour based on their dynamic stiffness. Physical properties include mechanical loss factor, tensile strength, elongation at break and fire performance in accordance with DIN EN 45545-2 (R10, HL3). Die-cut parts, water-jet-cut parts and self-adhesive versions are available on request.