3M™ Fire Barrier Sealant CP 25WB+ is a high-performance latex-based intumescent firestop sealant. When properly installed, this product provides up to 4 hours of fire protection in tested and listed systems.When properly installed, the 3M Fire Barrier Sealant helps prevent the spread of fire, smoke and noxious gas. In addition, this product acts as an acoustic barrier by minimizing noise transfer (STC-Rating of 54 when tested in a STC 54-rated wall assembly), helps create a smoke seal for systems requiring the optional L-Rating, meets the intent of LEED green building program credits VOC environmental regulations and International Building Code (IBC) requirements.
Applied with conventional caulking equipment (excellent caulk rate)
Excellent adhesion
Expansive UL and other third-party listed systems
Fire Resistance tested for static construction joint systems in accordance with ASTM E 1966 (UL 2079)
Firestop tested up to 4 hours in accordance with ASTM E 814 (UL 1479) and CAN/ULC S115
Halogen-free
Helps minimize sound transfer
Re-enterable/repairable
Sag-resistant
