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SpecSeal Series SSB Firestop Pillows - STI

STI Firestop Pillows installed.

Description of SpecSeal Series SSB Firestop Pillows - STI

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Avoid mess, clean-up and decrease installation time by using STI Firestop Pillows to create a firestopping barrier. No tools required the fire stop pillows can be stacked, stuffed and wedged into spaces surrounding pipes, cables and ducts that pass through walls and floors. Easiest to maintain, service, add or replace cables and pipes because you just have to remove a fire protection pillow, do your work, and replace it.

Each STI fire barrier pillow contains a covering layer of intumescent seal over a mineral fiber core that is packaged in heat sealed poly bag which protects the core while helping pillows slip in and out during installation.

UL Classified and FM Approved

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STI Firestop Pillow Data Sheet

SSB Series Firestop Pillow
Color Red
Standards UL and ULA Listed, FM Approved
Nom. Density 4 PCF (53 kg/m3)
Compression** 25% - 33%
Air Leakage Less than 1 CFM/sq ft
Rating UL 1479 (Pillows Only)
VOC Content*** 0.00 lbs/gal (0.0 g/l)
STC Rating 60
Shelf Life No Limit
In Service Temp. <130°F (54°C)
Flammability* V-0
* Outer poly bag.
**As installed
***ASTM D-3960 and EPA Federal Reference Method 24.


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