3M 7100138831 3M™ Fire Barrier...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$87.74
$37.74
3M 7100138831 3M™ Fire Barrier Self-Locking Pillows FB369SL, Large, 3 in x 6 in x 9 in, 20/Case

3M 7100138831 3M™ Fire Barrier Self-Locking Pillows FB369SL, Large, 3 in x 6 in x 9 in, 20/Case

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Model: 7100138831
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$87.74
$37.74
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3M™ Fire Barrier Self-Locking Pillows FB369SL, Large, 3 in x 6 in x 9 in, 20/Case

  • Features

    • Firestop tested for up to 3 hours in accordance with ASTM E 814 (UL 1479) and CAN/ULC-S115
    • Interlocking strips let installers quickly lock pillows together by hand for fast, accurate firestops
    • Available in multiple sizes and can be cut in the field for precise fill and compression
    • Easy to install, remove and reconfigure to help save time and labor
    • No wire mesh or additional support required
    • Intumescent pillows are designed to expand and lock together for tight seal against flame, smoke and toxic gasses

Manufacturer Resources

Product Specs

Application:
Commercial Construction
Country Of Origin:
United States
Etim Class 8 0:
EC000209
Fire Rating:
Up to 3 Hour
Overall Length Imperial :
9.0 in
Overall Length Metric :
229.0 mm
Overall Thickness Imperial :
3.0 in
Overall Width Imperial :
6.0 in
Overall Width Metric :
152.0 mm
Product Color:
Red
Product Form:
Pillow
Product Type:
Pillow
Rds Url Regulatory Data Sheet :
https://cdmsweb.3m.com/ingredientcommunication/file/Media/BwqofAgRtZA=
Smoke Seal:
Yes
Water Tight:
No
Department:
Electrical

3M 7100138831 – Frequently Asked Questions

1) How long will 3M FB369SL fire barrier pillows hold a penetration rated?
The FB369SL self-locking pillows are firestop tested for up to 3 hours per ASTM E 814 (UL 1479) and CAN/ULC-S115. The actual rating you get comes from the specific UL system you build to, so match the penetration, the wall or floor construction, and the pillow arrangement to that system.
2) What size opening will one 3M FB369SL pillow fill?
Each large FB369SL pillow measures 3 in thick x 6 in wide x 9 in long (152 mm x 229 mm). You stack and interlock them to fill the opening, and they can be cut in the field to get tight fill and compression around cables or conduit in an odd-shaped sleeve.
3) Should I use firestop pillows or a caulk/sealant on a cable tray penetration?
Pillows are the choice when the penetration changes. Cable trays and sleeves that get new runs pulled through them are the classic case: the FB369SL pillows install, remove and reconfigure by hand, so a data tech can pull cable next month and re-seal in minutes. A caulk or putty seal is the better pick on a penetration that is finished and will not be touched again, since it is a permanent, one-time seal.
4) Do 3M self-locking fire pillows need wire mesh or a retaining frame?
No. The FB369SL pillows require no wire mesh or additional support. Interlocking strips on the pillow faces let installers lock them to each other by hand, so the assembly holds itself in the opening without a retaining screen or frame.
5) Do these pillows seal smoke as well as fire?
Yes, the FB369SL is a smoke seal. The intumescent fill expands under heat and the pillows lock together to seal against flame, smoke and toxic gasses. They are not water tight, so do not treat them as a moisture or water barrier on a below-grade or exterior penetration.
6) How many 3M FB369SL pillows come in a case?
The FB369SL large pillows ship 20 per case under 3M part number 7100138831. Figure your count from the opening area, not the pillow count, and allow for compression, pillows are meant to be packed tight rather than laid loose.
7) Are the red 3M fire barrier pillows suitable for a commercial electrical room?
That is exactly the application. The FB369SL is intended for commercial construction and is catalogued for electrical work, where it seals cable and conduit penetrations through rated walls and floors. The red color is deliberate, it makes a firestop easy for an inspector or facility tech to spot and identify during a walkthrough.
8) Where do I get the regulatory/ingredient data for these 3M firestop pillows?
3M publishes a Regulatory Data Sheet for the FB369SL pillows at https://cdmsweb.3m.com/ingredientcommunication/file/Media/BwqofAgRtZA=. Institutional and government buyers who need ingredient disclosure on file before a submittal usually want that document plus the UL system number they are building to.
9) Are 3M FB369SL fire barrier pillows made in the USA?
Yes, the FB369SL pillows have a United States country of origin, which matters on public work with domestic sourcing requirements.
How fast can I get the 3M 7100138831 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the 3M 7100138831 come with a warranty?
Absolutely. The 3M 7100138831 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the 3M 7100138831?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the 3M 7100138831 from ZenSupply?
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