Fire Stop Caulk - 3M

Use 3M Fire-Barrier Caulk to guard against damage from fire, smoke and toxic gasses. This latex sealant withstands flames for up to 4 hours and expands when exposed to heat. Dries to red color, no mixing required. 10.1 oz.  Excellent adhesion No-sag, non-halogen formula Paintable Protects against fire for up to 4 hours Expands when exposed to heat to protect against smoke and toxic gasses Dries to the touch in 15 minutes Fire stop tested up to 4 hours in accordance with ASTM E 814 (UL 1479) and CAN/ULC S115 Fire resistance tested for static construction joint systems in accordance with ASTM E 1966 (UL 2079) Helps minimize sound transfer Re-enterable/repairable This product qualifies as an intumescent fire caulk