3M Fire Barrier Sealant IC 15WB+ is a yellow, one-part, gun-grade, intumescent firestop sealant that provides up to 3-hour fire protection in tested and listed systems. This helps prevent the spread of fire, smoke and noxious gas, while also acting as an acoustic barrier to help minimize noise transfer.

• Firestop tested for through penetration applications for up to 3-hours in accordance with ASTM E 814 (UL 1479) and CAN/ULC S115
• Sealant designed to help minimize sound transfer
• Firestop sealant is compatible with CPVC piping
• Water-based and paintable sealant provides easy application and clean-up
• Exceptional adhesion for long-term performance
• Applied with conventional caulking equipment with excellent caulk rate
• Sag-resistant properties offer clean application as well as strong adhesion
• Sealant is re-enterable and repairable
• Fire resistance tested for static construction joint systems in accordance with ASTM E 1966 (UL 2079)
• Subject to or will include a recycling fee in the following states: CA, OR
• Firestop sealant is compatible with CPVC piping (check CPVC manufacturers' current compatibility list for firestop products before using)
• SDS