Fire stopping walls and floors can often become compromised by building programmes which need to make way for pipework or cable trays. High Strength FireStop Compound is made up of a specially formulated gypsum-based mortar which reinstates fire performance in voids. For ease of application, when the mortar is mixed with water it creates a workable range, from a stiff to pourable mix. HS FireStop Compound can also be pre-cast into conveniently sized blocks for use in wall openings. Service penetrations should be protected with the proven tested fire stopping solution. HS FireStop Compound has been independently tested for use in walls and floors. In addition to its fire stopping qualities, HS FireStop Compound also compliments acoustic performance. Tested in accordance with EN 10140, HS FireStop Compound achieves Rw 54 dB at a depth of 100mm (with 50mm ROCKWOOL shuttering batt).