Product Info

3M Fire Barrier Pillows are a reliable, cost-effective, and easy-to-install fire protection product. These barrier pillows prevent fire, smoke, and toxins from easily spreading from one room or floor to another through through-wall openings. In this article, we highlight the product’s features, applications, and more.

3M Fire Barrier Pillows Overview

3M Fire Barrier Pillows are used to create a seal around through-wall openings, such as HVAC and cable pass-throughs. They protect from flames, smoke, and toxic gases for up to three hours. Made of high-quality, graphite-free materials, they can be used around electrical conduits without concern. The pillows are easy-to-install since they do not require the use of wire mesh. All of the above can make 3M Fire Barrier pillows a great solution for your next job, which we explain in further detail below.  

How Do 3M Fire Barrier Pillows Work?

3M Fire Barrier Pillows are intumescent, meaning they swell when heated and expand to form a “hard char” that provides a tight seal, preventing the spread of flames, smoke, and toxic gases. This hard char seal adds the necessary firestop protection for medium to large openings containing communication or power cables, conduits, and such for up to three hours.

Re-Usable & Re-Enterable

Both architects and contractors are turning to 3M Fire Barrier Pillows to meet fire-rating standards. They are ideal because they are self-contained, re-usable, and re-enterable fire stops. Since they are re-usable, they are an excellent temporary solution that you can use from job to job.

They are also re-enterable, which means they can be removed to access whatever they are sealing off and then be placed back into position. For instance, if you need to run more cables, you can remove the pillows that are in the way, install the cables, and “re-enter” the pillows into the opening.

Benefits of 3M Fire Barrier Pillows

3M Fire Barrier Pillows check off a lot on the desirable list for any construction product, from safety to affordability.

●      Tested for Safety:

○      3M Fire Barrier Pillows are firestop tested for up to three hours of protection (in accordance with ASTM E 814 - UL 1479)

○      Graphite-free composition which will not conduct electricity

●      Easy to Install: No wire mesh required, which makes these easy to install, inspect, remove and reuse as needed

●      Affordable: The upfront costs are very reasonable, with its value increasing even more due to its re-usability

●      High Quality: Excellent aging properties for long-lasting performance and durability

Recommended Applications for 3M Fire Barrier Pillows:

●      Prevents fire spread in medium to large openings containing power or communication cables and conduits. 

●      Concrete, block or gypsum walls and concrete floors

●      One or two able racks or trays per penetration

●      Blank openings up to 540 sq. in. (3,483 sq. cm)

●      Can be used with conduit bank, inner duct cable, and cable racks or trays

●      Designed to be used with 3M Moldable Putty+

We Can Help!

If you have an upcoming commercial job that needs a cost-effective fire protection solution, then easy-to-install, quality 3M Fire Barrier Pillows might be the perfect product. When you are ready, MacArthur Co. is here to help! Rely on our building materials experts to help answer any questions that you may have! 

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