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๐ฅ Seal the deal with 3Mโs fire & sound barrier power! ๐
3M Fire Barrier Sealant CP 25WB+ is a premium, red intumescent latex sealant designed for industrial and commercial firestopping. It offers up to 4 hours of fire resistance, blocks smoke and toxic gases, and reduces sound transmission with an STC rating of 54. Its water-based, sag-resistant formula ensures clean application, strong adhesion, and easy paintability across multiple surfaces, making it the go-to solution for professional-grade fire and sound barrier sealing.




| ASIN | B000LDJ7JQ |
| Best Sellers Rank | #140,849 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #14 in Fire Barrier Caulk |
| Brand | 3M |
| Brand Name | 3M |
| Color | RED |
| Compatible Material | Ceramic, Concrete, Engineered Wood, Fiberglass, Glass, Leather, Metal, Plastic, Polyvinyl Chloride, Porcelain, Rubber, Terracotta, Vinyl, Wood |
| Customer Reviews | 4.4 out of 5 stars 25 Reviews |
| Global Trade Identification Number | 00051115116421 |
| Included Components | FIRE BARRIER CAULK |
| Item Dimensions | 9.69 x 4.62 x 14.38 inches |
| Item Form | Liquid |
| Item Type Name | 3M Fire Barrier Sealant CP 25WB+ - for Commercial, Industrial and Residential Applications - Sausage Pack, 20 fluid ounces - Red |
| Item Weight | 1.7 pounds |
| Item dimensions L x W x H | 9.69 x 4.62 x 14.38 inches |
| Manufacturer | 3M |
| Model | CP-25WB+20OZ |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | 051115116421 |
| Style | Industrial |
| Style Name | Industrial |
| Supported Standards | ASTM E814, UL 1479, CAN/ULC-S115 |
| Surface Recommendation | Miscellaneous |
| UPC | 051115116421 |
| Unit Count | 1 Count |
| Water Resistance Level | Waterproof |
J**R
Excelente producto.
El producto cumple 100% con lo especificado.
H**L
Five Stars
Great in the service trucks
B**G
fine
its too expensive , i retuned it
C**B
Horrible
I guess there must be some kind of trick to use this. Its too liquidy, gets on your hands and comes off with great difficulty, and doesnt stay in place very well especially in ceiling applications. I have started using the ones in a tube which is much better and easier. The best and the easiest however, was the spray foam. If your local regulations allow for the foam, use it, so much easier and cleaner. Check with your fire marshal or fire department before making a selection though, to be sure you are compliant.
Trustpilot
3 weeks ago
1 week ago