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3M Fire Block Sealant FB 136 is a one-component, non-combustible draft, smoke, and fireblocking sealant. It is designed to resist high temperatures and smoke passage in non-rated construction. This sealant is ideal for sealing interior construction voids around wires, pipes, HVAC ducts, and vents in wood or steel framed non-rated constructions.
This sealant meets International Building Code (IBC) and International Residential Code (IRC) fireblocking requirements. It also offers excellent adhesion, bonding to a variety of materials like concrete, brick, metals, and plastics.
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