3M FIRE BARRIER CP 25WB+ SEALANT
3M FIRE BARRIER CP 25WB+
Advanced Intumescent 3M Firestop Sealant
- The 3M™ Fire Barrier CP 25WB+ Sealant is a premium-grade, elastomeric latex-based firestop caulk engineered to provide robust protection against the spread of fire, smoke, moisture, and noxious gases.
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- This high-performance sealant features advanced intumescent properties, meaning it dynamically expands when exposed to intense heat. As combustible items like cable insulation are consumed by fire, the sealant expands to fill the void, maintaining a tight, uncompromising penetration seal.
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- Formulated for easy application and longevity, CP 25WB+ is a halogen-free, thixotropic caulk that delivers superior adhesion without sagging, making it ideal for both vertical and overhead installations.
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- Ready to use with standard architectural tools, it provides up to a 4-hour fire resistance rating to help protect property and safeguard lives.
Key Features
High Fire Resistance Rating
Achieves up to a 4-hour fire rating to meet stringent commercial building codes.
Advanced Intumescent Property
Expands dynamically under heat to seal gaps left by burned-away cable jacketing and insulation.
Endothermic Thermal Barrier
Actively absorbs heat energy and releases chemically bound water to cool surrounding surfaces.
Thixotropic (No-Sag) Formula
High-viscosity paste that will not sag, drip, or run, ensuring clean overhead and vertical applications.
Water-Based & Easy Clean-Up
Requires no special handling or complex cleanup; excess material washes away easily with water and allows for routine disposal.
Fast-Drying & Paintable
Becomes tack-free in approximately 10 to 15 minutes and can be painted over after a full 72-hour cure.
High Caulk Rate
Engineered for rapid application with a high flow rate of 1000 g/min using a 6mm (1/4") nozzle.
Eco-Conscious Formula
Halogen-free composition with minimal shrinkage and a distinct reddish-brown color for quick inspection and verification.
Integrated Water Seal
Provides immediate waterproof protection against spills and moisture, even in normal conditions.
Technical Specifications
| Property / Specification | Value / Detail |
| Color | Red |
Application Temperature Range(ASTM C 1299) | 40° to 122°F (4° to 50°C) |
| Service Temperature Range | -20° to 180°F (-28° to 82°C) |
STC Acoustic Barrier | 54 when tested in STC 54 rated wall assembly |
Surface Burning(ASTM E 84) | Flame Spread: 0 Smoke Development: 0 |
| Hardness (ASTM D240 Shore A) | 45 |
| Tensile Strength | 85 psi (0.59 MPa) |
| Volume Shrinkage (ASTM C 1241) | 28% |
| VOC Less H2O and Exempt Solvents* | <1 g/L |
Drying Times (Under typical conditions of 75°F (23°C) and 50% relative humidity) | Tack-free: ~10 minutesDry-to-touch: 30–60 minutesFull dry: Depends on ambient conditions and sealant volume. Typical dry rate is approx. 1/8-inch (3mm) per day. |
| Unit Volume | 10.1 fl. oz. tube (300mL), 20 fl. oz. sausage (591 mL), 4.5-gallon pail (17 L) |
*Meets the intent of LEED® VOC environmental quality requirements
Applications
Wrapping and sealing metal or plastic piping systems passing through fire barriers.
Serving as a reliable smoke, toxic gas, and moisture barrier in critical commercial, industrial, and residential construction joints.
Sealing blank openings and through-penetrations in fire-rated walls, floors, and ceilings.
Why Choose Us?
As an Authorized 3M™ Distributor in Saudi Arabia, we supply high-demand 3M™ passive fire protection solutions with reliable stock availability to support fast-moving construction and industrial projects.
Through our authorized channels, you receive 100% authentic, fully traceable products that comply with international UL certifications and Saudi Arabian regulatory requirements—ensuring dependable performance, regulatory compliance, and uninterrupted project execution.
Contact UsThe ARACO Commitment
We align ourselves with partners who demand excellence because we understand that on industrial and construction sites, safety and reliability are non-negotiable. Every solution we supply is selected to meet the highest performance and quality standards, ensuring dependable protection in critical applications. With a commitment to consistency, compliance, and long-term performance, we help our customers build safer, more resilient projects with confidence.
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