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Specified Technologies SpecSeal 3" x 6" x 9" Fire Pillow

Brand: Specified Technologies Mfg#: SSB36
Product#: 479SSB36
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SpecSeal® Firestop Pillows are through-penetration firestop products resembling small cushions or soft bricks. These intumescent and highly resilient pillows are installed in openings by compressing and stacking into the opening in a brick-like fashion. SpecSeal® Firestop Pillows consist of a mineral fiber core material sealed with a water-resistant intumescent membrane. This coated core material is then heat-sealed in a tough, non-irritating, fire-retardant poly bag


  • Heat Sealed Poly Cover protects core and allows pillows to slide in and out with ease
  • Lightweight for ease of installation
  • Re-installable for easy retrofitting of cables
  • No special tools required
  • Single side application makes installation easy for tough access openings
  • Monolithic encapsulated core - no loose fill
  • No sewn seams to unravel or tear
  • Superior air leakage ratings
  • Easier wire screen requirements
  • No irritating fiberglass
  • Intumescent - Expands in all directions for a tough, tight seal
  • Heat-sealed poly bag-strong and durable


  • Brand: Specified Technologies
  • Product Line: SpecSeal
  • Type: Intumescent
  • Material: Heat Treated Poly Bag
  • Standards: FM Approved, UL/ULA Listed
  • Length: 9 in
  • Width: 6 in
  • Height: 3 in
  • Special Features: Solid Physical Form, 0.1 Specific Gravity, Red
  • Usage: For Power, Voice, Data, Bus Ducts, Multiple Metallic Conduits and Tubing