3M FIRE BARRIER SEALANT CP 25WB+This 3M CP 25WB+ fire barrier sealant is a latex-based, intumescent firestop sealant that provides up to 4 hours of fire protection. It helps prevent the spread of fire, smoke, and noxious gases through penetrations and openings in fire-rated walls and floors.
- Up to 4-hour fire rating (ASTM E 814 / UL 1479)
- Latex-based, intumescent formula
- Expands up to 3x its dried volume above 1,000 deg F
- Helps prevent spread of fire, smoke, and noxious gases
- Acts as an acoustic barrier to reduce sound transfer
- Paintable with water cleanup
- Halogen-free, low VOC formula
- Gun-grade, no mixing required
- Re-enterable and repairable
- 10.1 oz cartridge
- Color: Red
- UL Classified