3M™ Fire Barrier Silicone Sealant 2000+, Gray, 10.3 fl oz Cartridge, 12/case

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3M™ Fire Barrier Silicone Sealant 2000+ is an elastomeric, ready-to-use, single-component, neutral-cure silicone sealant that cures upon exposure to atmospheric humidity. We designed this sealant to form a flexible firestop seal that also acts as a barrier to airborne sound transmission. This product is firestop tested up to 3 hours in accordance with ASTM E 814 (UL 1479) and CAN/ULC S115.