Metacaulk RS 136 Fire Block / Smoke Seal Caulk

DESCRIPTION: Incombustible fire-block, smoke-seal, acoustic-block and draft-stop caulk that beds and seals small voids, splices and gaps. Not for use in continuous vibration or wet environments.


  • Inorganic material with no volatile solvents (particularly useful when installing in confined spaces or occupied areas); does not have asbestos fillers
  • An easy installation sealant with water cleanup capabilities; no mixing or special skills necessary & no required additives; applied with a conventional caulking gun
  • Excellent freeze-thaw
  • 2-year shelf life

PERFORMANCE: UL Classified system; tested in accordance with ASTM E136

Product Variations

  • 66408 - RS 136 Fire Block / Smoke Seal Caulk



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