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Firestop Sealant

Firestop Sealants and Caulks are applied to gaps and voids made from penetrants through fire-rated walls.  Firestop Sealants will stop the passage of smoke and flame through these voids during the event of a fire. Most Firestop Caulks and Sealants are "Intumescent" which means that they will expand and harden when the fire caulk hits an elevated temperature caused by a fire. The intumescent char will block and seal any gaps or openings and block smoke or other toxic fumes from passing through.

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