Fire Barrier CP 25WB+Caulk
Product Description
3M™ Fire Barrier CP 25WB+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, CP 25WB+ Caulk expands to maintain the penetration seal.
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.
Product Features
- 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.
- Halogen-free.
- Fast dry: Tack-free in approximately 10-15 minutes.
- Paintable. (Best results obtained after 72 hour cure.)
- Minimal shrinkage.
- Brown color.
- Water seal: Seals against inadvertent water spills in the unexpanded state.
- High caulk rate: 1000 g/min. with injection nozzle.
- Point contact allowed.
- Continuous Operating Temperature not to exceed 120°F (48°C).
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.
Specifications
The firestopping caulk shall be a one-part, intumescent, latex elastomer. The caulk shall be capable of expanding a minimum of 3 times at 538°C (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 |
Mechanical Mechanical Insulation Fire Protection |
| Division 16 16050 |
Electrical Basic Electrical Materials and Methods |
Performance
Typical Physical Properties
| Unit | Value | |
|---|---|---|
| Tack Free Time (ASTM C679-87) | Minutes at 22°C | 10-15 |
| Expansion at 350°C | X | 10-15 |
| Color | - | Reddish Brown |
| Density | Kg/l (Lb./gal.) | 1,35 (11.2) |
| Adhesion | All construction substrates | Very Good |
| Application | Method | Caulk guns, trowel, spatula pressurized pumps |
| Durometer (hardness) | Shore A | 70 |
| ASTM E 84 Flame Spread Smoke Development |
- - |
5 0 |
| Solids | Percent (%) by weight | 79 |
| VOC | Percent (%) by weight | 0 |
| Odour | - | Pleasant/non-irritating |
| Flow Rate - 6,35 mm (1/4 in.) 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.
Packaging Information
3M Brand Fire Barrier CP 25WB+Caulk is available in Standard 10.1 fl. oz. cartridge, 20 oz. sausage, 27.0 oz. cartridge, 2 gallon pail and 5 gallon pail.
The CP 25WB+ Caulk is stable under normal storage conditions and has a one year shelf life.
Store between 4°C (40°F) – 32°C (90°F) for maximum shelf life. Keep from freezing.
