3M™ Fire Block Foam FB-Foam is a fireblock and draftstop used to help seal, fill, insulate and bond for non-rated residential and commercial construction. This foam-in-place fireblock is heat-resistant (up to 240°F/115°C) and meets ASTM E 84 (mod) Class 1 for smoke spread and flame development. This fireblock foam is ready-to-use and tack-free in approximately 5 minutes. Reliable and Tough FireblockWe engineered 3M™ Fire Block Foam FB-Foam as a durable fireblock and draftstop. This product seals, fills, insulates and bonds for non-rated residential and commercial construction. Ready-to-use, this fireblock foam is intended to resist the free passage of flame and by-products of combustion within a concealed space of a floor, ceiling or wall cavity — restricting the movement of air, fire and smoke. This foam is tested as a Type V commercial and residential fireblock to ASTM E 84 (modified) and acts as a draftstop to help reduce air infiltration. This ready-to-use product is heat-resistant (up to 240°F/115°C) and expands up to 200% in volume to effectively seal penetrations.Recommended Applications3M™ Fire Block Foam FB-Foam is used to seal interior construction voids around: Features Tested as a Type V residential Fireblock to ASTM E 84 (modified) Durable foam is heat-resistant (up to 240°F/115°C) Acts as a draftstop to help reduce air infiltration Thermal insulator foam offers an R-Value of 4-5/inch (25.4 mm) typical Fireblock foam is ready-to-use (no mixing required) Tack-free in approximately 5 minutes Expands up to 200% in volume to quickly and effectively seal openings Meets International Building Code (IBC) and International Residential Code (IRC) Fireblocking Requirements Features minimal shrinkage and sag-resistant formulation to help ensure longevity Excellent adhesion that bonds to concrete, brick, metals, wood, plastic and cable jacketing Minimal shrinkage
