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Economical, one-part, gun-grade, latex-based, intumescent firestop sealant that dries to form a monolithic firestop seal that also acts as a barrier to airborne sound transmission.
Firestops through penetrations passing through fire-rated floor, floor/ceiling or wall assemblies, as well as other fire-rated interior building partitions and assemblies (eg static construction or blank openings). In addition, the unique intumescent property of this material allows the sealant to expand and help maintain a firestop penetration up to 3 hours as penetrants are exposed to fire. Sealant bonds to most construction substrates, including gypsum wallboard, concrete, metals, wood, plastic including CPVC and cable jacketing. No mixing is required.