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3M Fire Block 136 10 oz

Brand: 3M Mfg#: 98040054938
Product#: 479FB13611
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A versatile, one component, water-based, non-combustible draft, smoke and fireblocking sealant, designed to resist high temperatures and smoke passage in non-rated construction. Meets ASTM E 136 noncombustibility requirements. Gray color, no mixing required.


  • Halogen free
  • Easy clean up with water
  • Tack free in approximately 15 min
  • Thixotropic (will not sag or run in vertical or overhead applications)
  • Applied with standard caulking gun or trowel (high caulk rate)