






🔥 Seal the deal, stop the spread — fireproof your space like a pro!
3M Fire Barrier Sealant CP 25WB+ is a high-performance, latex-based intumescent sealant designed to expand up to three times its dried volume at temperatures above 1000°F. It offers up to 4-hour UL firestop ratings across hundreds of certified systems, making it ideal for sealing HVAC ducts, pipes, cables, and other penetrations in rated walls and floors. With a sag-resistant, no-mix formula, it ensures quick, clean application while meeting stringent building code requirements.
| ASIN | B00MJ9GDZG |
| Best Sellers Rank | #114,278 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #500 in Industrial Sealants |
| Brand | 3M |
| Color | Sausage |
| Date First Available | August 8, 2014 |
| Item Form | Fl |
| Item Weight | 18 pounds |
| Item dimensions L x W x H | 14.29 x 9.88 x 4.29 inches |
| Item model number | CP-25WB+20oz |
| Manufacturer | 3M |
| Material | Rubber |
| Number of Items | 10 |
| Product Dimensions | 14.29 x 9.88 x 4.29 inches |
| Style | Mechanical |
| Surface Recommendation | Pipe |
| Water Resistance Level | Not Water Resistant |
J**.
Very good
Very good
B**.
Huge Mess
One of them had exploded in the case. Huge mess.
Trustpilot
2 months ago
2 weeks ago