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3M™ Fire Barrier IC 15WB+ Sealant from Signet


The 3M Fire Barrier IC 15WB+ Sealant is a latex sealant designed for use as a one-part fire, smoke, noxious gas and water resistant sealant. In addition, the unique intumescent property of this material (expands when heated) means that as the combustible cable insulation is consumed by fire, the sealant expands to maintain the penetration seal.

IC 15WB+ Sealant can be installed with a standard or bulk caulking gun, pneumatic pumping equipment or it can be easily applied with a putty knife or trowel. Sealant bonds to gypsum wallboard, concrete, metals, wood, plastic and cable jacketing. No mixing is required. Tool within 5 minutes of application, if required. IC 15WB+ Sealant provides Fire Resistance Ratings of up to 2 hours.

Product Features

  • Water Based: Easy clean up, no special handling, routine disposal.
  • Intumescent: Expands when heated to maintain seal around items consumed by fire.
  • Endothermic: Absorbs heat energy, releases chemically bound water.
  • Thixotropic: Will not sag or run in overhead or vertical applications.
  • Halogen-free.
  • Fast dry: Tack-free in approximately 8 to 12 minutes @ 23°C (73°F).
  • Paintable. Best results obtained after 72 hour cure.
  • Minimal shrinkage.
  • Yellow colour.
  • High flow rate: 2000 g/min. with 6 mm (1/4") nozzle.
  • Point contact allowed.
  • Testing in accordance with AS1530.4, EN1366, and ASTM E814 (UL Listed).

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