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3M Fire Block Sealant FB 136, Heat Resistant, Gray Caulk, Bonds to Concrete, Metal, Wood, Plastic, Cable Jacketing, 1 Count

4.4 4.4 out of 5 stars 279 ratings
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Purchase options and add-ons

Brand 3M
Item Weight 1.1 Pounds
Liquid Volume 10.1 Fluid Ounces
Surface Recommendation Pipe
Water Resistance Level Waterproof

About this item

  • RESISTS HIGH TEMPERATURES (up to 2000F): Water-based, non-combustible draft, smoke and fire-blocking sealant designed to resist high temperatures and smoke passage in non-rated construction.
  • SEAL INTERIOR CONSTRUCTION VOIDS: Superior adhesion strength, caulk rate and non-sag application, plus a halogen-free formula. No mixing required.
  • FAST DRY: Tack free in approximately 15 minutes.
  • BONDS TO MOST CONSTRUCTION SURFACES: Concrete, brick, gypsum, metals, wood, plastic, glass and cable jacketing.Coverage (linear ft.):29
  • EASY TO CLEAN UP with water and no special handling – routine disposal.
  • THIXOTROPIC: Will not sag or run in vertical or overhead applications. Minimal shrinkage.
  • APPLIED WITH STANDARD CAULKING GUN, pneumatic pumping equipment or it can be easily applied with a putty knife or trowel.
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Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Package Dimensions ‏ : ‎ 11.1 x 1.93 x 1.89 inches; 1.1 Pounds
  • Item model number ‏ : ‎ FB 136
  • Date First Available ‏ : ‎ October 11, 2011
  • Manufacturer ‏ : ‎ 3M
  • ASIN ‏ : ‎ B005PYXUEY
  • Country of Origin ‏ : ‎ USA
  • Customer Reviews:
    4.4 4.4 out of 5 stars 279 ratings

Product Description

3M Fire Block Sealant FB 136 is ideal to seal interior construction voids around through penetrations (i. e. , wires, pipes, HVAC ducts and vents) in wood or steel framed non-rated construction. It is a versatile, one component, non-combustible draft, smoke and fire-blocking sealant, designed to resist high temperatures and smoke passage in non-rated construction. Product may also be used around chimney, fireplace and other framing gaps. Can be applied to overhead, vertical, and horizontal applications. Not for exterior use. 3M Fire Block Sealant FB 136 is tested to and passed the criteria of ASTM E-136 Standard Test Method for Behavior of Materials in a Vertical Tube Furnace at 750C (1380F). The sealant complies with the requirements of the International Building Code (IBC), International Residential Code (IRC), International Fire Code (IFC), International Mechanical Code (IMC), International Fuel Gas Code (IFGC) and NFPA 5000.

Important information

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3M industrial and occupational products are intended, labeled, and packaged for sale to trained industrial and occupational customers for workplace use. Unless specifically stated otherwise on the applicable product packaging or literature, these products are not intended, labeled, or packaged for sale to or use by consumers (e.g., for home, personal, primary or secondary school, recreational/sporting, or other uses not described in the applicable product packaging or literature), and must be selected and used in compliance with applicable health and safety regulations and standards (e.g., U.S. OSHA, ANSI), as well as all product literature, user instructions, warnings, and other limitations, and the user must take any action required under any recall, field action, or other product use notice. Misuse of 3M industrial and occupational products may result in injury, sickness, death, or property damage. For help with product selection and use, consult your on-site safety professional, industrial hygienist, or other subject matter expert. For additional product information, visit www.3M.com.

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From the manufacturer


Will not sag or run in vertical or overhead applications.

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Recommended Applications

3M Fire Block FB 136 is used to seal interior construction voids around:

  • Wires
  • Pipes
  • HVAC ducts
  • Penetrations in non-rated wood or steel-framed construction
  • Non-rated framing gaps and voids
  • Seals and Protects

3M Fire Block FB 136

3M Fire Block Sealant FB 136 is a one component, non-combustible draft, smoke and fireblocking sealant, designed to resist high temperatures and smoke passage in nonrated construction. Use 3M Fire Block Sealant FB 136 to seal interior construction voids around wires, pipes, HVAC ducts and vents, in wood or steel framed non-rated construction.

Details:

  • Tested as a Type V residential Fireblock to ASTM E 84 (modified)
  • Durable caulk is heat-resistant (up to 240°F/115°C)
  • Acts as a draftstop to help reduce air infiltration
  • Thermal insulator offers an R-Value of 4-5/inch (25.4 mm) typical
  • FB-136 is ready-to-use (no mixing required)
  • Tack-free in approximately 15 minutes
  • Meets International Building Code (IBC) and International Residential Code (IRC) Fireblocking Requirements
  • This fireblock also provides excellent adhesion that bonds to concrete, brick, metals, wood, plastic and cable jacketing.
3M Fire Block FB 136
Reliable and Tough Fireblock

We engineered 3M Fire Block FB 136 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 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 fireblock 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).

Seals and Protects

3M Fire Block FB 136 has been evaluated by the UL evaluation report ER9700-01 and complies with the International Building Code (IBC) and International Residential Code (IRC). This fireblock is tack-free in approximately 15 minutes and features minimal shrinkage and sag-resistant formulation to help ensure longevity, plus a halogen-free formula.

Strong Fireblocking Solution

3M Fire Block FB 136 is a tough solution that helps seal, fill, insulate and bond for non-rated residential and commercial construction. Discover the benefits of a fireblock 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.

  • Thixotropic material resists sag or run in vertical or overhead applications
  • Sealant requires no special handling for routine disposal
  • Excellent adhesion that bonds to concrete, brick, metals, wood, plastic and cable jacketing
  • Features minimal shrinkage to help ensure longevity

What's in the box

  • 3M Fire Block Sealant FB 136, 1 Each

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    Customer reviews

    4.4 out of 5 stars
    4.4 out of 5
    279 global ratings

    Top reviews from the United States

    RW
    5.0 out of 5 stars Good Brand
    Reviewed in the United States on April 29, 2024
    Verified Purchase
    Good brand - 3M is legit!
    Helpful
     Report
    Doug B
    5.0 out of 5 stars Fire rated caulking
    Reviewed in the United States on February 27, 2024
    Verified Purchase
    Simple to use. Used it with fireboard.
    Helpful
     Report
    R. Brautlacht
    5.0 out of 5 stars Worked on chimney
    Reviewed in the United States on April 1, 2024
    Verified Purchase
    worked great to fill hot water tank to chimney leaks
    Helpful
     Report
    Vickie Cooper
    4.0 out of 5 stars It works
    Reviewed in the United States on April 29, 2023
    Verified Purchase
    Use it one alone of stuff that is close to heat
    Helpful
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    Hobbyhobbit
    5.0 out of 5 stars Easy to use. No idea how it will perform in a fire
    Reviewed in the United States on February 11, 2024
    Verified Purchase
    Easy to dispense and 3M is a highly reputable make.
    Helpful
     Report
    David A.
    5.0 out of 5 stars Color
    Reviewed in the United States on February 16, 2024
    Verified Purchase
    Excellent product and color
    Helpful
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    Robin H
    3.0 out of 5 stars Product failed.
    Reviewed in the United States on May 28, 2023
    Verified Purchase
    It melted and turned to liquid once it got near heat
    7 people found this helpful
    Helpful
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    SARAH J VIALONGA
    5.0 out of 5 stars Does the job
    Reviewed in the United States on February 23, 2024
    Verified Purchase
    Great value
    Helpful
     Report