3M™ Fire Barrier CP 25WB+ Caulk
Intumescent Latex Caulk Seals Out Fire, Water, Smoke, and Noxious Gases
What's special about this fire barrier caulk?
- Water Base: Easy clean up, no special handling, routine disposal
- Intumescent: Expands when heated to seal around items consumed by fire
- Endothermic: Absorbs heat energy, releases chemically bound water
- Thixotropic: Will not sag or run in overhead or vertical applications
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3M Fire Caulk is a premium elastomeric latex caulk designed for use as a one-part fire, smoke, noxious gas and water sealant. In addition, the unique intumescent property of this material (expands when heated) means that as cable or pipe insulation is consumed by fire, 3M Fire Caulk expands to maintain the penetration seal.
Please Note: Pail orders ship in 5 Business days.
| Part # | Package Size | Usage | Price |
|---|---|---|---|
| FP-3M-CP25WB-T | 10.1 oz. Tube | Lightweight easy to handle. Perfect for smaller jobs. | Manufacturer Direct
|
| FP-3M-CP25WB-P | 5 gallon Pail | Great for bulk loading on large jobs. The most cost-effective way to caulk large areas. | Manufacturer Direct
|
CP 25WB+ Caulk features superior adhesion strength, caulk rate and no sag application with expanded UL Classified fire protection systems plus a halogen-free formula.
3M Fire Barrier CP 25WB+ Caulk can be installed with a standard caulking gun, pneumatic pumping equipment or it can be easily applied with a putty knife or trowel. CP 25WB+ Caulk will bond to concrete, metals, wood, plastic and cable jacketing. No mixing is required.
Applications
Use to seal construction openings, blank openings and penetrating items against the passage of flame, noxious gas, smoke and water. Restores fire rated construction to original integrity. Also for use with 3M Brand Fire Barrier FS195+ Wrap/Strip and CS-195+ Composite Sheet.
FILL, VOID OR CAVITY MATERIALS FOR USE IN THROUGH-PENETRATION FIRESTOP SYSTEMS.
SEE UL DIRECTORY OF PRODUCTS CERTIFIED FOR CANADA AND UL FIRE RESISTANCE DIRECTORY 50L6.
Product
The firestopping caulk shall be a one-part, intumescent, latex elastomer. The caulk shall be capable of expanding a minimum of 3 times at 1000°F. The material shall be thixotropic and be applicable to overhead, vertical and horizontal firestops. The caulk shall be listed by independent test agencies such as UL or FM and be tested to, and pass the criteria of, ASTM E 814 Fire Test, tested under positive pressure. It shall comply with the requirements of the NEC (NFPA-70), BOCA, ICBO, SBCCI and NFPA Code #101.
| Typically Specified Divisions | |
|---|---|
| Division 7 07270 |
Thermal and Moisture Protection Firestopping |
| Division 13 13900 |
Special Construction Fire Suppression and Supervisory Systems |
| Division 15 15250 15300 |
Mechanical Mechanical Insulation Fire Protection |
| Division 16 Electrical 16050 |
Electrical Basic Electrical Materials and Methods |
| Performance | ||
| Unit | Value | |
|
Tack Free Time
(ASTM C679-87) |
Minutes at 72°F (22°C) | 10-15 |
|
Expansion at 662°F (350°C)
|
X | 2.0-3.0 |
|
Color
|
– | Reddish Brown |
|
Density
|
Lb./gal. (Kg/l) | 11.2 (1,35) |
|
Adhesion
|
All construction substrates | Very Good |
|
Application
|
Method | Caulk guns, trowel, spatula pressurized pumps |
|
Durometer (hardness)
|
Shore A | 70 |
|
ASTM E 84 |
– – |
5 0 |
|
Solids
|
Percent (%) by weight | 79 |
|
VOC
|
Percent (%) by weight | 0 |
|
Odor
|
– | Pleasant, non-irritating |
|
Flow Rate
1/4 in. (6,35 mm) nozzle at 50 psi |
Grams/min. | 1000 |
|
Boeing Flow
(Sag Characteristics) |
Inches | 0 |
Firestopping Properties
Meets the criteria of ASTM E 814 Fire Test, tested under positive pressure.
Consult current UL Fire Resistance Directory for systems listed under 3M Product CP 25WB+ Caulk.
Firestopping Code Requirements
| ICBO Uniform Building Code (1997 Edition) |
SBCCI Standard Building Code (1997 Edition) |
BOCA Basic/National Building Code(1996 Edition) | NFPA Life Safety Code 101 (1997 Edition) | |
|
702 |
104.2.4 PLANS MUST SHOW HOW INTEGRITY IS MAINTAINED FOR ASSEMBLIES PENETRATED 202 DEFINITIONS 705.3 WOOD FRAME CONSTRUCTION FIREBLOCKING 705.3.1.5 CURTAIN WALL GAP 705.4 (GENERAL) PENETRATIONS OF FIRE RATED ASSEMBLIES 705.5 (WALLS) 705.6 (FLOORS) 705.7 FIRE RESISTANT JOINT SYSTEMS |
702.0 REVISED AND EXPANDED DEFINITIONS FOR PENETRATIONS AND JOINTS 703.1 CONSTRUCTION DOCUMENTS SHALL INDICATE DETAILS AND MATERIALS FOR PROVIDING RATINGS AT JOINTS AND PENETRATIONS 703.1.1 PENETRATIONS AND JOINTS SHALL NOT BE CONCEALED FROM VIEW BEFORE INSPECTION 703.2 BUILDINGS FOR MORE THAN TWO STORIES SHALL INDICATE ALL PENETRATIONS 704.1.1 SUFFICIENT DATA SHALL BE AVAILABLE TO JUSTIFY UNTESTED MATERIALS USED FOR RESTORATION OF FIRE RATINGS 707.0 FIRE WALLS AND PARTY WALLS 707.10 PENETRATIONS - REFERS TO 714 707.8 JOINTS - REFERS TO 709.7 709.0 FIRE SEPARATION ASSEMBLIES |
709.6 PENETRATIONS - REFER TO 714 709.7 JOINTS 711.0 FIRE PARTITIONS 711.6 PENETRATIONS - REFERS TO 714 711.7 JOINTS - REFER TO 709.7 713.0 FLOOR/CEILING AND ROOF/CEILING ASSEMBLIES 713.2 CURTAIN WALL GAP 713.4 PENETRATIONS - REFERS TO 714 713.5 JOINTS - REFERS TO 709.7 714.0 PENETRATIONS - ALL REQUIREMENTS (GENERAL) 714.1 THROUGH 714.1.6.2 WALL ASSEMBLIES 714.2 THROUGH 714.2.6.5 FLOOR/CEILING AND ROOF/CEILING ASSEMBLIES 714.3 THROUGH 714.3.2 NONRATED ASSEMBLIES 721.0 FIREBLOCKING AND DRAFTSTOPPING |
6-2.3.2.4 PENETRATIONS AND MISC. OPENINGS&FIRE BARRIERS 6.2.4.2, EXCEPTION 5 OPENINGS (EXPANSION OR SEISMIC JOINTS) IN FLOORS APPENDIX A-6-2.4.2 6-3.6.1 PENETRATIONS AND MISC. OPENINGS IN FLOORS AND SMOKE BARRIERS NFPA #221 FIRE WALLS AND |
|
NFPA
|
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CABO |
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FILL, VOID OR CAVITY MATERIALS FOR USE IN THROUGH-PENETRATION FIRESTOP SYSTEMS.
SEE UL DIRECTORY OF PRODUCTS CERTIFIED FOR CANADA AND UL FIRE RESISTANCE DIRECTORY 50L6.
Related Articles
How-To Corner
Installation Techniques:
Shown are examples of approved applications of CP 25WB+ Caulk. Additional drawings and details are available through your Authorized 3M Fire Protection Products Distributor.
Installation Notes:
- Metal Pipe/Conduit applications through nominal 12 in. (304,8 mm) outside diameter
- Installed depth of CP 25WB+ Caulk depends on annular space.
- When the annular space is less than 1-1/4 in. (31,8 mm), a 1/2 in. (12,7 mm) minimum depth of CP 25WB+ Caulk is required.
- When the annular space is greater than 1-1/4 in. (31,8 mm), a 1 in. (25,4 mm) minimum depth of CP 25WB+ Caulk is required.
- Common building materials, such as backer rod may be used for metal pipe applications.
- Metal Pipe applications larger than nominal 12 in. (304,8 mm) outside diameter.
- All cases require a 1 in. (25,4mm) minimum depth of CP 25WB+ Caulk.
- Insulated Cable Applications.
- All cases require a 1 in. (25,4mm) minimum depth of CP 25WB+ Caulk.
- All cases require mineral wool (safing) for packing.
- Fiberglass Insulated Pipe Applications.
- 1 in. (25,4 mm) of fiberglass insulation on up to a nominal 12 in. (304,8 mm) of metal pipe may be firestopped with a 1 in. (25,4 mm) depth of CP 25WB+ Caulk.
- 1 in. (25,4 mm) depth of mineral wool packing required
Maintenance:
The CP 25WB+ Caulk is stable under normal storage conditions and has a one year shelf life. Normal stock and stock rotation are recommended.
Recommended:
Store between 40°F (4°C)-90°F (32°C) for maximum shelf life. Keep from freezing.
Warranty and Limited Remedy:
This product will be free from defects in material and manufacture for a period of ninety (90) days from date of purchase. 3M MAKES NO OTHER WARRANTIES INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
User is responsible for determining whether the 3M product is fit for a particular purpose and suitable for user’s method of application. If this 3M product is proved to be defective within the warranty period stated above, your exclusive remedy and 3M’s sole obligation shall be, at 3M’s option, to replace or repair the 3M product or refund the purchase price of the 3M product.
Limitation of Liability:
Except where prohibited by law, 3M will not be liable for any loss or damage arising from the use of this 3M product, whether direct, indirect, special, incidental or consequential, regardless of the legal theory asserted, including warranty, contract, negligence or strict liability.
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Questions & Answers
tubing - Can this be used on pex tubing
- Thank you for your question. I believe this item is designed to work with rigid surfaces, flexible things like PEX tubing would not benefit from this product.
can it be used in a electrial box with no bare wires - Want to stop air leak in box no bare wires
- Thank you for your question. That seems like a reasonable application.
Our electrician used this product by spreading it at the back and sides of the electrical box instead of using a molded putty. With the way they applied this product, will it meet the 1 hour rated wall requirement
- Yes, it will meet the 1 hour requirement.
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