The 3M™ Fire Barrier Self-Locking Pillow FB249SL is a self-contained, intumescent product that features interlocking strips that allow quick and secure pillow installation in floors or walls.The 3M Fire Barrier Self-Locking Pillows remove easily when adding new services. These self-contained, intumescent pillows are for use in a wide variety of through-penetration firestops including cable trays, conduit and blank openings. They provide up to 3 hours of fire protection. During a fire, 3M Fire Barrier Self-Locking Pillows intumesce (expand) and lock themselves into place, surrounding the penetrant(s) to help prevent the spread of smoke, fire and toxic gases. These easy-to-install fire barrier pillows are ideal for projects requiring re-enterability of the firestop system. Pillows can be simply removed and replaced as needed. Any combination of small, medium, or large pillows can be used to firestop an opening provided the minimum compression requirements are met (minimum of 33% within the opening).
Available in three sizes (use a combination of sizes to fit a variety of openings)
does not conduct electricity
Easy to install and easy to remove (helps save time and labour)
Firestop tested for up to 3 hours in accordance with ASTM E 814 (UL 1479)
Graphite-free
Interlocking strips quickly lock pillows together
Intumesces to form a hard char that tightly seals penetrations against flame spread
No wire mesh required
Re-enterable and re-useable for new or retrofit installations
smoke and toxic gases
UL classified (meets code requirements)
