3M Fire Barrier Sealant CP 25WB+ 10.1 oz Cartridge
Fire barrier sealant that expands to prevent fire spread and fits thousands of UL firestop systems. Customers note easy use and good adhesion to drywall and plastic
Highlights
- expands up to 3x its dried volume
- widely listed in UL firestop systems
- multi-application fire barrier sealant
Pros
- expands to seal through fire barriers
- good adhesion to drywall and plastic
- easy to use with caulking gun
Cons
- messy cleanup when applying
- some texture description noted by users
Best For
Features
- Seals openings through fire barriers where mechanical services pass through
- Expands to at least three times its dried volume when exposed to above 1000F (538C)
- Suitable for a single product with multiple uses across UL firestop systems
- Supports a variety of applications including HVAC ducts, pipes, blank openings, cables, and through-penetrations
