BOSS® Product

BOSS® 136 Fireblock / Draftstop Sealant

  • A one-part, noncombustible filler caulk
  • The ideal product for residential construction and meets all sections of the newly adopted International Residential Building Code.
  • Adhesion properties are superior to other products on the market - it literally sticks to the most common construction materials and is semi-flexible.
  • Interior use only and is particularly suited for sealing walls and floors which have been penetrated by pipes, conduits or electrical cables in all types of construction and for filling interior voids around HVAC, plumbing and framing.
  • Application is with a standard caulk gun or trowel, and clean up is with water.
  • Meets and exceeds the specifications for ASTM E-136 and conforms to all National Building Codes, including BOCA, CABO, SBCCI, ICBO, NFPA and the 2003 International Building Codes. It is the most versatile firestop product available in today's marketplace.

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