Product Description
3M Fire Barrier Sealant CP 25WB+ is a one-component, latex-based, intumescent sealant that dries to form a monolithic fire-stop seal. This sealant also acts as a barrier to airborne sound transmission. As penetrants are exposed to fire, the intumescent property of this material allows the sealant to expand and help maintain a fire-stop 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).
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 1000°F (538°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.
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).
Effective and easy to install, 3M Fire Barrier Sealant CP 25WB+ is part of 3M's 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.
Features & Benefits
- Firestop tested for through penetration applications up to 4 hours in accordance with ASTM E814 (UL 1479) and CAN/ULC-S115.
- Applied with conventional caulking equipment with excellent caulk rate.
- Sag-resistant properties offer clean application as well as strong adhesion in both wall and floor applications.
- Water-based and paintable sealant provides easy application and clean-up.
- Sealant is re-enterable and repairable.
- Fire resistance tested for static construction joint systems in accordance with ASTM E 1966 (UL 2079).
- Sealant helps minimize sound transfer.
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
Country of Origin: United States.
Application Instructions
Surface Preparation: Surfaces to be sealed or bonded should be clean and dry. Surfaces should be free from grease, mold release, oil, water/condensation, and other contaminants that may affect the adhesion of the sealant. Abrading with 180 to 220 grit abrasive followed by a solvent wipe will improve the bond strength. Suitable solvents include 3M Adhesive Remover or methyl ethyl ketone (MEK).
* Multiple cases may be shipped per package in order to minimize the charge for shipping.
Technical Information
3M Fire Barrier Sealant CP 25WB+
- Weight: 1 pound 2 ounces
- Format: Cartridge
- Composition: Acrylic
- Fire Rating: Up to 4 hours
- Fire Resistance Type: Intumescent
- Hardness: 45 Shore A
- Service Temperature Range: -20° F - 180° F
- STC Rating: Up to 54 in a 54 Rated Wall
- Smoke Seal: Yes
- Country of Origin: United States
Note: Specifications are those given by manufacturers and are not tested for accuracy.