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Internet # 100390499

Model # FB 136

Store SKU # 191728

10.1 fl. oz. Gray Fire Block Specialty Sealant

$7.68
  • Ready-to-use formula, no mixing required
  • Water based caulk dries to gray color
  • Ideal for use in non-rated residential construction
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Product Details

About This Product

3M Fire Block Sealant FB 136 is a one component, non-combustible draft, smoke and fire blocking 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. This fire block is tack-free in approximately 15 minutes and features minimal shrinkage and sag-resistant formulation to help ensure longevity, plus a halogen-free formula. This fire block also provides excellent adhesion that bonds to concrete, brick, metals, wood, plastic and cable jacketing.

Highlights

  • Tested as a type V residential Fireblock to ASTM E 84 (modified)
  • Durable caulk is heat-resistant (up to 240 degree F/115 degree C)
  • Acts as a draft stop to help reduce air infiltration
  • Thermal insulator offers an R-value of 4 in. - 5 in. (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) fire blocking requirements
  • Features minimal shrinkage to help ensure longevity
  • Excellent adhesion that bonds to concrete, brick, metals, wood, plastic and cable jacketing
  • Sealant requires no special handling for routine disposal
  • Thixotropic material resists sag or run in vertical or overhead applications
  • Need help choosing the right Caulk? Click Here for Home Depot's Buying Guide!
  • Click Here for the How to Caulk Project Guide
  • Return Policy
  • California residents
     see Prop 65 WARNINGS

Product Information

Internet # 100390499

Model # FB 136

Store SKU # 191728

Additional Resources

Shop All 3M

Specifications

Individual size (oz.): 10.1 oz

Dimensions

Individual size (oz.)

10.1 oz

Details

Caulk and Sealant Application

Specialty

Caulk and Sealant Type

Polyurethane

Color/Finish

Gray

Coverage (linear ft.)

29

Cure Time (hours)

25

Dry Color Family

Gray

Dry to Touch (min.)

15 min

Features

Fire and High Heat Resistant

Indoor/Outdoor

Indoor

Interior/Exterior

Interior

Kit

No

Longevity

25 years

Number of Tubes Included

1

Professional Paint Supplies & Values

Pro Supplies

Returnable

90-Day

Sealant Form

Standard Tube

Transparency

Solid

Warranty / Certifications

Certifications and Listings

ASTM Compliant

Manufacturer Warranty

Limited Warranty, reference document attached

Questions & Answers

66Questions
caret
Q:Will this fire caulk adhere to Granite?
by|Apr 14, 2024
1 Answer
Answer This Question

A:  Due to the technical nature of your request, please call our certified team at 1-800-494-3552 M-F 8am-4:30pm CT. They can gather your information and let you know the best product to meet your needs.

by|Apr 17, 2024
    caret
    Q:Is this good to attach chimney cap to the chimney bricks>
    by|Apr 5, 2024
    1 Answer
    Answer This Question

    A:  Due to the technical nature of your request, please call our certified team at 1-800-494-3552 M-F 8am-4:30pm CT. They can gather your information and let you know the best product to meet your needs.

    by|Apr 5, 2024
      caret
      Q:I used this to seal my stove pipe connections to my pellet stove. How long after I apply may I use ?
      by|Feb 13, 2024
      0 Answer
      Answer This Question
      caret
      Q:what is the fire rating on it is it 2hours?
      by|Nov 30, 2023
      1 Answer
      Answer This Question

      A:  Hello - Thank you for asking. Due to the technical nature of your question, please connect with our team directly at 1-800-494-3552 Mo-Fri 8am-4:30pm CT.

      by|Dec 23, 2023
        1 found this answer helpful
        Showing 1-4 of 66

        Customer Reviews

        4.3 out of 5

        • 4.3 out of 248 reviews
        • 82% recommend this product
        Filter by:
        Showing 1-10 of 248 reviews
        DO NOT BUY! Does Not Seal! Dries a flaky mess!
        When we bought our home, we made sure to have the chimney inspected, and everything checked out. On a rare, cool winter night in Virginia, we adjusted the flue and started a fire, only to find smoke sneaking in the house from around the metal fireplace cover. We bought this in the store, followed the directions Exactly, and forgot about it for several months. I went to clean up around the edges and found the 'sealant' had dried & flaked off, Horribly! No seal was left, just dried chunks.
        by
        Response from 3M Social CareSep 1, 2023
        Hello, thank you for taking the time to leave your review. Your experience is not what we would expect, and we would appreciate the opportunity to discuss this with you and gather further details. Please connect with our team at 1-800-494-3552 Mo-Fri 8am-4:30pm CT. Thanks again, and we look forward to your call. 3m-country-catalog
          Fire Block Works Well
          Fire Block worked well to seal a pre-existing hole in an electrical box. The product is easy to use and works as described.
          by
          • Verified Purchase
          Works Great . On older flue pipes
          Works Great . On older flue pipes
          by
          • Verified Purchase
          • Recommended
          2 found this review helpful
          it worked like a dream from my application, the grey coloring just happened to be the color that ...
          it worked like a dream from my application, the grey coloring just happened to be the color that I needed that was unexpected but very nice. The temperature rating was the final decision maker for me to purchase, the rest of the fireblocks didn't have heat ratings on the label. All in all I would recommend this product to anybody looking to seal high temperature leeks and or heat evacuation points from any closed loop duct system.
          by
          • Verified Purchase
          • Recommended
          1 found this review helpful
          great product easy to push out tube works great on concrete board spreads easy and also easy to c...
          great product easy to push out tube works great on concrete board spreads easy and also easy to clean up. would recommend
          by
          • Verified Purchase
          • Recommended
          1 found this review helpful
          Worked really well on my pellet stove, had to seal the joints up on the top stack of the stove it...
          Worked really well on my pellet stove, had to seal the joints up on the top stack of the stove it leak from time to time probably have to do this each season.
          by
          • Verified Purchase
          • Recommended
          I used the 3M Fireblock 136 sealant to block drafts into the wall containing my electrical servi...
          I used the 3M Fireblock 136 sealant to block drafts into the wall containing my electrical service panel. The major appliance wires had to be rerun due to animal pests, probably squirrels, that ate the copper and shielding off the cable. while the power had been turned off over a two year period. The photo shows the use of the fire-block at the base of the knee wall. The material readily sealed the wire pathways through the floor and created a barrier to air and critters of all types.
          by
          • Verified Purchase
          • Recommended
          by
          • Verified Purchase
          by
          • Verified Purchase
          Unfortunately the only rating I can give is poor because I picked it up in the evening and went to use it the next day but it was hard as a rock.
          by
          Response from 3M Social CareMar 1, 2024
          Thank you for leaving your review. We are sorry to hear this and would not have expected the product to be as described. If you need any further assistance, please connect with us directly at 1-800-494-3552 Monday-Friday 8:00am-4:30pm CT. 3m-country-catalog
          • Verified Purchase
          Showing 1-10 of 248 reviews