STI Firestop SpecSeal SSB Firestop Pillows


  • Available in four different sizes
  • Tested in a wide range of construction types and configurations
  • Easily installs from a single side
  • Re-enterable allowing for future work in previously sealed openings

SKU: SSB14 Category: Tag:

SpecSeal SSB Firestop Pillows easily compress and conform around any penetrant. Equally suited for new or existing conditions, SpecSeal Pillows make short work of even the most complex through-penetration firestop conditions.

Physical Properties

Density4 pcf (64 kg/m³)
Compression25% to 33%**
Air LeakageLess than 1 CFM/sq ft
In Service TemperatureLess than 130°F (54°C)
Storage TemperatureLess than 130°F (54°C)
STC Rating (ASTM E 90-40)60 (Relates to specific construction)
L Rating (UL1479 and CAN/ULC-S115)Less than 1 CFM/sq ft (Pillows Only)
VOC Content0.00 lbs/gal (0.0 g/L)***
Shelf LifeNo Limit

*Outer poly bag

**As installed

***Per SCAQMD Rule 1168 (EPA Method 24)


STI Firestop


1" x 4" x 9", 2" x 4" x 9", 2" x 6" x 9", 3" x 6" x 9"

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