3M CP-25WB Fire Barrier Caulk 10.5oz
Our premium, intumescent latex/water-based caulk. Water based - easy cleanup and routine disposal with no special handling. One-part system - no mixing or measuring required. Intumescent and endothermic. A premium elastomeric latex caulk designed for use as a one-part fire, smoke, noxious gas and water sealant for through-penetrations.