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STI SSC Intumescent Firestop Collars

Availability: In stock

SpecSeal SSC Firestop Collars are factory-manufactured firestop devices sized to plastic pipes of up to 6 in. Trade Size. SSC Collars consist of a restraining collar with a factory applied intumescent ensuring the correct amount of material is applied every time. Under fire exposure, SSC Collars quickly expand and collapse combustible piping forming a dense char, resisting the passage of smoke and flame.

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Product Description


  • Sized for 1-1/2", 2", 3", 4", 6" Trade Size Combustible Pipes
  • Installs quickly and eliminates waste
  • Tested to CAN/ULC-S115 at 50 PA (0.20 in. water)

Application Properties
Plastic Pipe Finished Product
  Low VOC
  No Expiration


Physical Properties

Property Value
Availble Sizes 1.5" (38mm), 2" (51mm), 3" (76mm), 4" (102mm), 6" (152mm)
Shell Construction Galvanized Steel
Expansion Begins 320°F (160°C)
Volume Expansion 32x to 64x (free expansion)
In Service Temperature Less than 120°F (49°C)
Shelf Life No Limit


Ordering Information

Catalogue Number Description (UOM) Qty. Case Qty. Weight (Each)
STI_SSC150 Firestop Collar for 1.5" (38 mm) Trade Size Plastic Pipe 1 6 0.33 lbs (0.15 kg)
STI_SSC200 Firestop Collar for 2.0" (51 mm) Trade Size Plastic Pipe 1 6 0.38 lbs (0.17 kg)
STI_SSC300 Firestop Collar for 3.0" (76 mm) Trade Size Plastic Pipe 1 6 0.74 lbs (0.33 kg)
STI_SSC400 Firestop Collar for 4.0" (102 mm) Trade Size Plastic Pipe 1 6 1.07 lbs (0.49 kg)
STI_SSC600 Firestop Collar for 6.0" (152 mm) Trade Size Plastic Pipe 1 6 5.04 lbs (2.29 kg)