SpecSeal Series SSS Intumescent Firestop Sealant

STI – two-stage intumescent, latex based, firestop compound that expands rapidly to seal off the path of smoke and other hot gasses ahead of a fire. Over 200 UL classified uses, including use for metallic pipes and nonmetallic pipes, HVAC ductwork, insulated pipes, cable, and cable trays.

Product Guides

Data Sheet

Product Description

  • Characteristics
  • Two-Stage expansionStage 1: 230°F (110°C), Stage 2: 350°F (177°C)

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John J. Moroney & Co. supplies a growing number of energy efficient and greener building materials.