3M™ Fire Block Foam FB-Foam
Residential use only.
Heat-resistant up to 240° F (115° C)
ASTM E 84 Class 1 (modified)
Draftstop ― helps reduce air infiltration
Thermal insulator ― R-Value of 4 to 5 per inch typical
Ready-to-use (no mixing required)
Tack-free in approximately 5 minutes
Expands to quickly and effectively seal openings
Meets International Building Code (IBC) and International Residential Code (IRC) Fireblocking Requirements
Excellent adhesion—bonds to concrete, brick, metals, wood, plastic and cable jacketing
For use in residential Type V and commercial non-rated construction in areas that require sealing to maintain the integrity of a fireblock. Use 3M™ Fire Block Foam FB-Foam to seal interior construction voids around wires, pipes, cables and other penetrations in non-rated wood or steel-framed construction. May also be used around non-rated framing gaps/voids. Also acts as a draftstop to help prevent unwanted air infiltration.