3M™ Fire Barrier Sealant CP 25WB+                   10.1 fl. oz. Tube

This is a premium elastomeric latex caulk designed for use as a one-part fire, smoke, noxious gas and water sealant for through-penetrations.  In addition, the unique intumescent property of this material (expands when heated) means that as cable or pipe insulation is consumed by fire, CP 25WB+ Caulk expands to maintain the penetration seal.

3M Fire Barrier CP 25WB+ Caulk Offers up to 4 hours of Fire Protection and can be installed with a standard caulking gun, pneumatic pumping equipment or it can be easily applied with a putty knife or trowel.   It will bond to concrete, metals, wood, plastic and cable jacketing.

Features:

• Water Base: Easy clean up, no special handling, routine disposal.
• Intumescent: Expands when heated to 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.
• No-sag, non-halogen formula
• Fast dry: Tack-free in approximately 10-15 minutes.
• Paintable. (Best results obtained after 72 hour cure.)
• Minimal shrinkage.
• Brown color.
• Water seal: Seals against inadvertant water spills in the unexpanded state.
• High caulk rate: 1000 g/min. with in. nozzle.
• Point contact allowed.
• Continuous Operating Temperature not to exceed 120°F (48°C).
• Up to 4 hours Fire Protection.

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