3M™ Fire Barrier Self Locking Pillows are based on the design of our 3M™ Fire Barrier Pillows they provide all of the system coverage you have gotten use to plus they provide the added benefits of interlocking strips which allow them to easily be installed in floors and walls and removed quickly when new services are added.
Firestop tested for up to 3 hours in accordance with ASTM E 814 (UL 1479)
Intumesces to form a hard char that tightly seals penetrations against flame spread, smoke and toxic gases
No wire mesh required
Graphite-free, does not conduct electricity
Interlocking strips quickly lock pillows together
UL classified (meets code requirements)
Re-enterable and re-useable for new or retrofit installations
Available in three sizes (use a combination of sizes to fit a variety of openings)
Easy to install and easy to remove (helps save time and labor)
3M™ Fire Barrier Self-Locking Pillows act as a through penetration firestop, heat shield and firebreak protection material. Ideal for firestopping medium to large openings with power or communication cables, conduits and cable racks or trays (up to two racks or trays per opening, no additional support required, consult the applicable third-party test agency directory for specific systems). The self-locking pillows are typically used to firestop gypsum wall, block wall and concrete floor assemblies. 3M™ Fire Barrier Self-Locking Pillows are also excellent for firestopping large blank openings and are easily removed and re-installed for retrofit applications.