Jaco Firestop Sealant

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Jaco Firestop Sealant is a UL Classified commercial quality, intumescent, non-combustible fire, smoke and draft stopping sealant. For penetrations and construction voids. Water-bas ed. Non-corrosive, non-toxic, odorless compound. Withstands 3000°F for 8 hours. Unaffected by freeze/thaw. ASTM -E84 zero flame/ zero smoke. ASTM -E814 8 hour rating. ASTM -E136 non-combustible. Show more