3M™ Fire Block Foam, Orange, 12 fl oz, 12 Can/Case

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 E84 (mod) Class 1 for smoke spread and flame development. This fireblock foam is ready-to-use and tack-free in approximately 5 minutes.

Product Description

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 E84 (mod) Class 1 for smoke spread and flame development. This fireblock foam is ready-to-use and tack-free in approximately 5 minutes.

Key Benefits

  • Tested as Type V Residential Fireblock: Meets ASTM E 84 (modified).
  • Heat Resistant: Resists up to 240°F (115°C).
  • Thermal Insulation: Offers an R-Value of 4-5/inch (25.4 mm typical).
  • Quick Expansion: Expands up to 200% to effectively seal openings.
  • Fast Tack-Free Time: Tack-free in approximately 5 minutes.
  • Ready-to-Use: No mixing required.
  • Excellent Adhesion: Bonds to concrete, brick, metals, wood, plastic and cable jacketing.
  • Minimal Shrinkage: Maintains long-term seal integrity.
  • Sag-Resistant: Formulation helps ensure longevity even in vertical or overhead applications.
  • Code Compliant: Meets IBC and IRC Fireblocking Requirements.

Best For

  • Wires
  • Pipes
  • Cables
  • Non-rated wood or steel-framed construction penetrations
  • Non-rated framing gaps and voids
  • Draftstopping for air infiltration

Product Properties

Property Specification
Application Type V Residential and Non-Rated Commercial Construction
Brand 3M™
Fire Rating ASTM E 84 Class 1 (modified)
Color Orange
Packaging 12 fl oz (330 ml) cans, 12 cans per case
Tack-Free Time Approximately 5 minutes
Expansion Expands up to 200%
Thermal Insulation R-Value of 4-5/inch (25.4 mm typical)
Application Temperature Up to 240°F (115°C)