Gardner Gibson 3629-5-61 10oz 5000 Flame Stopper Intumescent Sealant-12PK LANC-160770

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An Advanced Flexible Intumescent Acrylic Latex Fire Stop Sealant designed to seal surfaces with or without movement. It intumesces or expands when exposed to extreme heat, cutting off the spread of fire through penetrations. Will not crack or deteriorate where vibrations occur. Stops the spread of toxic fumes, smoke and fire and dries to a red flexible seal. Apply in interior or exterior applications. Dried product can be painted. Meets/exceeds UL 1479, NFPA Class A, ASTM E-136 and E-119, complies with SBCCI, BOCA, ICBO and IRC 2000. Show more