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1 in x 4 in x 9 in STI SpecSeal SSB Intumescent Firestop Pillows

1 in x 4 in x 9 in STI SpecSeal SSB Intumescent Firestop Pillows Add to Quote autorenew

1 in x 4 in x 9 in STI SpecSeal SSB Intumescent Firestop Pillows


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, nonirritating, fireretardant poly bag.

  • Intumescent - expands in all directions for a tough, tight seal
  • Reinstallable for easy retrofitting of cables
  • Lightweight for ease of installation
  • Easier wire screen requirements for large openings and 3 to 4 hour ratings
  • Heat-sealed poly bag - strong & durable
  • No sewn seams to unravel or tear, no irritating fiberglass
  • Monolithic encapsulated core, no loose fill
  • No special tools required
  • Superior air leakage ratings
Code: STISSB14

For California Residents:

WARNING:Cancer and Reproductive Harm -

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