3M Fire Barrier Sealant FD 150+ is an economical, ready to use, gun-grade, elastomeric sealant that dries to from a monolithic flexible firestop seal. 3M Fire Barrier Sealant FD 150+ firestops joints and through penetrations through floor slabs, walls and other fire-rated building partitions and assemblies. When properly installed, helps control the spread of fire, smoke and noxious gasses before, during and after exposure to a fire. It remains elastomeric and exhibits excellent adhesion to a full range of construction substrates.Information provided by 3M |