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3M™ Fire Block Foam FB Foam

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Foam-in-place fire block and draft stop for non-rated residential and commercial construction. Meets ASTM E 84 (mod) Class 1 for smoke spread and flame development and has been evaluated by the UL evaluation report ER9700-01 and complies with the International Building Code (IBC) and International Residential Code (IRC).
  • 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
  • Sag-resistant formulation
  • Excellent adhesion—bonds to concrete, brick, metals, wood, plastic and cable jacketing
  • Minimal shrinkage