Details Firestop tested up to 3 hours in accordance with ASTM E 814 (UL 1479) and CAN/ULC S115 Fire resistive joint system tested up to 4 hours in accordance with ASTM E 1966 (UL 2079) Continuous seal remains pliable and allows for typical pipe movement Water-based for easy installation, cleanup and disposal High-solids formula means limited shrinkage Re-enterable and repairable fire barrier sealant Multi-viscosity grade offers excellent sealant and caulking properties Sealant helps minimize noise transfer Our 3M Fire Barrier Sealant FD 150+ is a gun-grade, latex-based, elastomeric sealant that cures upon exposure to the atmosphere to form a monolithic flexible firestop seal. When properly installed, this sealant helps control the spread of fire, smoke and noxious gasses before, during and after exposure to a fire and exhibits excellent adhesion to a full range of construction substrates. Tried and Tested Fire Protection Ready-to-use, 3M Fire Barrier Sealant FD 150+ is a latex-based elastomeric sealant. This gun-grade sealant cures when dispensed to form a monolithic flexible firestop seal and, when properly installed, this product provides up to 4-hour fire protection in tested and listed systems. We formulated this sealant to help prevent the spread of fire, smoke and noxious gas and firestop joints and through penetrations through floor slabs, walls and other fire-rated building partitions and assemblies. This firestop sealant offers a continuous seal with ± 19% movement capability for construction joints and typical pipe movement and exhibits excellent adhesion to a full range of construction substrates. Recommended Applications Construction joints Piping, all non-combustible and small diameter combustible Cables Fire Barrier Features 3M Fire Barrier Sealant FD 150+ acts as an acoustic barrier by minimizing noise transfer (STC-Rating of 56 when tested in a STC 56-rated wall assembly). We designed this fire barrier sealant to be water-based for easy installa