3M Fire Barrier CP 25WB+ Caulk
$30.43
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3M Fire Caulk is a premium elastomeric latex caulk designed for use as a one-part fire, smoke, noxious gas and water sealant. In addition, the unique intumescent property of this material means that as cable or pipe insulation is consumed by fire, 3M Fire Caulk will expand to maintain the penetration seal.
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