Protecta¨ FR Foam is a fire rated construction foam with good acoustic properties, designed to maintain the fire resistance in walls by filling linear gaps and the gaps around penetrations such as wooden frames in concrete, masonry, and gypsum walls. FR Foam is supplied as a single component polyu- rethane foam which cures by moisture absorption. It has excellent adhesion to most materials used in construction with excellent durability during service once cured. The foam comfortably meets the fire resistance requirement of 240 minutes at a depth of 200mm, and is an ideal and cost effective option for sealing between concrete, Leca and similar elements where a quality surface finish is not required.