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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.

  • 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

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 Fireblock
We 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 Applications
3M™ Fire Block Foam FB-Foam is used to seal interior construction voids around:

  • Wires
  • Pipes
  • Cables
  • Penetrations in non-rated wood or steel-framed construction
  • Non-rated framing gaps and voids

Seals and Protects
3M™ Fire Block Foam FB-Foam has been evaluated by the UL evaluation report ER9700-01 and complies with the International Building Code (IBC) and International Residential Code (IRC). This is a thermal insulator foam that offers an R-Value of 4-5/inch (25.4 mm) typical. In addition, this fireblock foam is tack-free in approximately 5 minutes and features minimal shrinkage and sag-resistant formulation to help ensure longevity. This foam also provides excellent adhesion that bonds to concrete, brick, metals, wood, plastic and cable jacketing.

Strong Fireblocking Solution
3M™ Fire Block Foam FB-Foam is a tough solution that helps seal, fill, insulate and bond for non-rated residential and commercial construction. Discover the benefits of a fireblock foam that restricts the movement of air, fire and smoke. Enjoy the peace of mind of that comes from a product designed to meet fireblocking codes and requirements.

Safety Data Sheets