--- product_id: 13923776 title: "3M Fire Barrier Sealant CP 25WB+, Red Color, One-Component, Gun-Grade, Latex-Based, Intumescent Material, 10.1 fl oz Cartridge" brand: "3m" price: "₨606" currency: SCR in_stock: true reviews_count: 12 category: "3 M" url: https://www.desertcart.sc/products/13923776-3m-fire-barrier-sealant-cp-25wb-red-color-one-component store_origin: SC region: Seychelles --- # Water-based, paintable & re-enterable STC 54 sound barrier rating 4-hour fire resistance 3M Fire Barrier Sealant CP 25WB+, Red Color, One-Component, Gun-Grade, Latex-Based, Intumescent Material, 10.1 fl oz Cartridge **Brand:** 3m **Price:** ₨606 **Availability:** βœ… In Stock ## Summary > πŸ”₯ Seal the deal with 3M’s firestop that’s as smart as your workspace! ## Quick Answers - **What is this?** 3M Fire Barrier Sealant CP 25WB+, Red Color, One-Component, Gun-Grade, Latex-Based, Intumescent Material, 10.1 fl oz Cartridge by 3m - **How much does it cost?** ₨606 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/13923776-3m-fire-barrier-sealant-cp-25wb-red-color-one-component) ## Best For - 3m enthusiasts ## Why This Product - Trusted 3m brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Visible & Reliable:** Bright red color for quick inspection and trusted 3M industrial-grade quality. - β€’ **Smart & Sustainable:** Water-based, non-halogen formula that's paintable and easy to clean. - β€’ **Soundproof Your Space:** STC 54 rating minimizes airborne noise, enhancing workplace calm. - β€’ **Effortless Application:** Gun-grade, sag-resistant latex formula ensures clean, precise sealing. - β€’ **Unmatched Fire Protection:** Certified up to 4 hours per ASTM E814 & UL 1479 for ultimate safety. ## Overview 3M Fire Barrier Sealant CP 25WB+ is a premium, one-component, latex-based intumescent sealant designed for commercial and industrial firestop applications. It offers up to 4 hours of fire resistance, an STC 54 sound transmission class rating, and a water-based, paintable formula that’s easy to apply and clean. Engineered for strong adhesion and sag resistance, this bright red sealant expands under heat to maintain fire, smoke, and toxic gas barriers, making it a trusted choice for professionals demanding reliable, code-compliant fire protection. ## Description Dependable and Easy-to-Use Firestop Sealant. Tough and ready-to-use, 3M Fire Barrier Sealant CP 25WB+ is a high-performance, one-component, latex-based, intumescent sealant that dries to form a monolithic firestop seal. This sealant also acts as a barrier to airborne sound transmission. As penetrants are exposed to fire, the unique intumescent property of this material allows 3M Fire Barrier Sealant CP 25WB+ to expand and help maintain a firestop penetration seal for up to 4 hours. This sealant is designed to help control the spread of fire, smoke and noxious gases before, during and after exposure to a fire when installed in accordance with a listed through-penetration or fire-resistive joint assembly system (STC-Rating of 54 when tested in a STC 54-rated wall assembly). Recommended Applications: HVAC ducts and vents; Metallic and non-metallic pipes; Blank openings; Single and bundled cables; Insulated pipe; Pipe and cable through-penetrations; Busways; Combos; Rated wall, floor and floor-ceiling assemblies; Static construction joints. Ready to Protect for Consistent Results - 3M Fire Barrier Sealant CP 25WB+ firestops blank openings and penetrations passing through fire-rated floor, floor/ceiling or wall assemblies and other fire-rated interior building construction. This halogen-free sealant is capable of expanding a minimum of 3 times its dried volume when exposed to temperatures above 1000Β°F (538Β°C). We engineered this sag-resistant sealant to exhibit strong adhesion to a full range of construction substrates and penetrants. Applied with conventional caulking equipment, this gun-grade sealant offers an excellent caulk rate, no mixing is required. In addition, this water-based sealant is paintable as well as re-enterable and repairable, offering easy application and clean-up. Reliable and Affordable Fire Protection Effective and easy to install, 3M Fire Barrier Sealant CP 25WB+ is part of our family of fire protection products that offer the broadest, long-lasting solutions for a variety of commercial, industrial and residential applications. As a trusted leader in the fire protection industry, 3M offers a broad line of affordable products designed to meet the most demanding firestop requirements. Find the solution you need from the industry-preferred line of fire protection products. Review: Trusted 3M Product for Firestop Applications - I used this sealant for a firestop application where penetrations needed to be properly sealed, and it performed exactly as expected. The caulk applies smoothly with a standard caulk gun and has a workable consistency that makes it easy to fill gaps without excessive dripping. As expected from 3M, the product feels professional grade and is clearly intended for code-compliant fire barrier installations rather than general household caulking. The bright red color also makes it easy to identify after installation. If you're looking for a fire-rated sealant for the appropriate application, this is a reliable option from a trusted manufacturer. Be sure to verify that it meets the requirements of your specific project. Review: fire barrier sealant works well - sealant worked as advertised....would be nice to have in a smaller tube, as a lot will probably be discarded due to non-use.... ## Features - TESTED AND LISTED: Up to 4-hours in accordance with ASTM E814 (UL 1479) and CAN/ULC S115. Provides L-Rating (smoke seal) - STC RATING OF 54: When tested in a STC 54-rated wall assembly - PREMIUM INTUMESCENT LATEX SEALANT: For use as a one-part fire, smoke, toxic gas sealant in a non-halogen formula - SPECIALLY ENGINEERED: Sag-resistant properties offer clean application as well as strong adhesion in both wall and floor applications - WATER-BASED SEALANT: Easy application sealant is paintable, re-enterable and repairable with easy clean-up - SOUND BARRIER: Sealant acts as a barrier to help minimize airborne sound transmission - For industrial/occupational use only. Not for consumer sale or use. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00176M30Q | | Best Sellers Rank | #8,118 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2 in Fire Barrier Caulk | | Brand | 3M | | Brand Name | 3M | | Color | Red | | Compatible Material | Wood | | Customer Reviews | 4.7 out of 5 stars 556 Reviews | | Global Trade Identification Number | 00051115116384 | | Included Components | CP 25WB+ Series 10.1 Oz Red Fire Barrier Sealant | | Item Dimensions | 2 x 2 x 12 inches | | Item Form | Paste | | Item Type Name | 3M Fire Barrier Sealant CP 25WB+ - for Commercial, Industrial and Residential Applications - Cartridge, 10.1 fluid ounces - Red | | Item Weight | 0.55 Pounds | | Item dimensions L x W x H | 2 x 2 x 12 inches | | Manufacturer | 3M | | Material | Plastic | | Material Type | Plastic | | Model | CP-25WB+ | | Number of Items | 1 | | Part Number | 051115116384 | | Style | Industrial | | Style Name | Industrial | | Surface Recommendation | Pipe | | UPC | 051115116384 | | Unit Count | 1.0 Count | | Warranty Description | Warranty | | Water Resistance Level | Waterproof | ## Product Details - **Brand:** 3M - **Item Weight:** 0.55 Pounds - **Item dimensions L x W x H:** 2 x 2 x 12 inches - **Material:** Plastic - **Style:** Industrial ## Images ![3M Fire Barrier Sealant CP 25WB+, Red Color, One-Component, Gun-Grade, Latex-Based, Intumescent Material, 10.1 fl oz Cartridge - Image 1](https://m.media-amazon.com/images/I/418GrRlO5dL.jpg) ![3M Fire Barrier Sealant CP 25WB+, Red Color, One-Component, Gun-Grade, Latex-Based, Intumescent Material, 10.1 fl oz Cartridge - Image 2](https://m.media-amazon.com/images/I/71-RJ0zQu0L.jpg) ![3M Fire Barrier Sealant CP 25WB+, Red Color, One-Component, Gun-Grade, Latex-Based, Intumescent Material, 10.1 fl oz Cartridge - Image 3](https://m.media-amazon.com/images/I/71RopbnZRzL.jpg) ![3M Fire Barrier Sealant CP 25WB+, Red Color, One-Component, Gun-Grade, Latex-Based, Intumescent Material, 10.1 fl oz Cartridge - Image 4](https://m.media-amazon.com/images/I/811yS4ZWmIL.jpg) ![3M Fire Barrier Sealant CP 25WB+, Red Color, One-Component, Gun-Grade, Latex-Based, Intumescent Material, 10.1 fl oz Cartridge - Image 5](https://m.media-amazon.com/images/I/71NFvy+xQqL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Trusted 3M Product for Firestop Applications *by P***E on June 4, 2026* I used this sealant for a firestop application where penetrations needed to be properly sealed, and it performed exactly as expected. The caulk applies smoothly with a standard caulk gun and has a workable consistency that makes it easy to fill gaps without excessive dripping. As expected from 3M, the product feels professional grade and is clearly intended for code-compliant fire barrier installations rather than general household caulking. The bright red color also makes it easy to identify after installation. If you're looking for a fire-rated sealant for the appropriate application, this is a reliable option from a trusted manufacturer. Be sure to verify that it meets the requirements of your specific project. ### ⭐⭐⭐⭐⭐ fire barrier sealant works well *by N***G on January 13, 2026* sealant worked as advertised....would be nice to have in a smaller tube, as a lot will probably be discarded due to non-use.... ### ⭐⭐⭐⭐⭐ Makes the inspector happy *by M***K on December 13, 2025* I think I actually pay more money in labor to install this stuff than to buy it. I got about 1/2 of a 25,000 square-foot job done with aI think I actually pay more money in labor to install this stuff then to buy it. I got about 1/2 of a 25,000 square-foot job done with a single case so, what mortgage you ask for? ## Frequently Bought Together - 3M Fire Barrier Sealant CP 25WB+, Red Color, One-Component, Gun-Grade, Latex-Based, Intumescent Material, 10.1 fl oz Cartridge - 3M Fire Block Foam FB-Foam, Orange Color, Ready-To-Use, Foam-In-Place, 12 fl oz Can - 3M Fire Barrier Moldable Putty Stix MP+, Red Color, One-Part, Re-Enterable, Intumescent, 1.45 in x 6 in --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.sc/products/13923776-3m-fire-barrier-sealant-cp-25wb-red-color-one-component](https://www.desertcart.sc/products/13923776-3m-fire-barrier-sealant-cp-25wb-red-color-one-component) --- *Product available on Desertcart Seychelles* *Store origin: SC* *Last updated: 2026-07-11*