STI Firestop SpecSeal® Cast-In Firestop Device

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  • Tested for combustible and non-combustible penetrants
  • Variety of accessories available for any field condition
  • Incorporates built in smoke and water resistant seal
  • Usable in concrete floors as thin as 2-1/2″


SKU: CD201 Category: Tag:

Eliminate core-drilling and firestop after the concrete pour with SpecSeal CID Cast-In Firestop Devices. SpecSeal Cast-In Devices are a sleeve, concrete form and firestop rolled into a single device. SpecSeal Cast-In Devices are available in a range of sizes and heights to accommodate penetrant up to 6″ Trade Size penetrants and concrete depths of up to 36″.

Physical Properties

Shell ConstructionPolypropylene
Tube and Cap ConstructionPolyethylene
Expansion Begins320°F (160°C)
Volume Expansion250x (free expansion)
In Service TemperatureMax. 130°F (54°C)
Shelf LifeNo Limit


STI Firestop


2", 3", 4", 6"

Length (ft)

10", 20", 8", 36"

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