| 3M Fire Barrier Sealant IC 15WB+ is a cost-effective, 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. It 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 joints or blank openings). In addition, the unique intumecent property of this material allows this material to expand and help maintain a firestop penetration seal for up to 3 hrs as penetrants are exposed to fire. It bonds to most construction substrates, including: gypsum wallboard, concrete, metals, wood, plastic (including CPVC) and cable jacketing. No mixing is required.Information provided by 3M |
