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STI’s SpecSeal Firestop Block

STI’s SpecSeal Firestop Block

Manufacturer: STI

STI’s SpecSeal is a firestop intumescent urethane foam block. It is installed by compressing and stacking it into openings like a brick. It expands in high temperatures to impede fire, smoke and gas passage. It is reinstallable and dust-, fiber-, halogen- and solvent-free.

Product Tag:
  • Firestop Device
  • Integrated Systems
Appears In: Electrical Contractor May 2025

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