3M™ Fire Barrier Sealant CP 25WB+
Product Data Sheet
1. Product Description 3M™ Fire Barrier Sealant CP 25WB+ is a high-perfor-
mance, ready-to-use, gun-grade, latex-based, intumescent sealant that dries to form a monolithic firestop seal that also acts as a barrier to airborne sound transmission. 3M™ Fire Barrier Sealant CP 25WB+ helps control the spread of fire, smoke and noxious gasses before, during and after exposure to a fire when installed in accordance with a listed through penetration or fire-resistive joint assembly system.
3M™ FireBarrierSealantCP25WB+firestopsblankopeningsandpenetrationspassingthroughfire-ratedfloor,
floor/ceiling or wall assemblies and other fire-rated interior building construction. 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 as penetrants are exposed to fire. 3M™ Fire Barrier Sealant CP 25WB+ exhibits excellent adhesion to a full range of construction substrates and penetrants. No mixing is required.
High-performance firestop sealant that also helps minimize sound transfer
Product Color: 
Red
Product Features
•Firestop tested up to 4 hours in accordance withASTM E 814 (UL1479) & CAN/ULC S115
•Fire Resistance tested for static construction joint systems in accordance withASTM E 1966 (UL 2079)
•Re-enterable / repairable
•Meets UL1479 aging requirements
•Helps minimize sound transfer*
•Applied with conventional caulking equipment (excellent caulk rate)
•Extensive listed systems
•Sag-resistant
•Halogen-free
•Excellent adhesion
•Paintable
•Water clean up
Meets the intent of LEED® VOC regulations—helps reduce the quantity of indoor air contaminants that may be odorous, irritating and harmful to the comfort and well-being of the installers and occupants. <250 g/L VOC contents (less H2O and exempt solvents).
*Minimizes noise transfer—STC-Rating of 54 when tested in STC 54-rated wall assembly.
2. Applications High-performance 3M™ Fire Barrier Sealant CP25WB+ is ideal for sealing
single or multiple through penetrations in fire-rated construction. 3M™ Fire Barrier Sealant CP25WB+ is typically used in mechanical, electrical and plumbing applications to firestop openings created by the following penetrations in fire-rated floors, floor/ceilings or walls: metallic pipe, plastic pipe (excluding CPVC), conduit, power and communication cable, cable trays, busways, combos, insulated pipe and HVAC duct penetrations. 3M™ Fire Barrier Sealant CP25WB+ is also used to firestop blank openings and static construction joints.
FIRE BARRIER |
SMOKE SEAL |
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HOUR |
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LRATED |
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UP |
4 |
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TO |
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Meets Optional |
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Fire Protection |
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L Requirements |
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SOUND BARRIER |
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STC54 |
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In STC 54-rated |
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wall assembly |
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FILL, VOID OR CAVITY MATERIAL FOR USE IN THROUGH-PENETRATION FIRESTOP SYSTEMS
SEE UL FIRE RESISTANCE DIRECTORY 90G9
FILL, VOID OR CAVITY
MATERIALS 90G9
SUBJECT TO THE CONDITIONS OF APPROVAL AS A WALL & FLOOR PENETRATION FIRESTOP WHEN INSTALLED AS DESCRIBED IN THE CURRENT EDITION OF THE FMRC APPROVAL GUIDE
FIRESTOP SYSTEMS FIRESTOP SYSTEMS SEE INTERTEK DIRECTORY
SEE INTERTEK DIRECTORY
3. Specifications 3M™ Fire Barrier Sealant CP 25WB+ shall be a one component, ready-to-use, gun-grade, latex-based, intumescent firestop sealant capable of expanding a minimum of 3 times its dried volume when exposed to temperatures above 1000°F (538°C). The material shall be thixotropic and shall be applicable to overhead, vertical and horizontal firestops. The sealant shall be listed by independent test agencies such as UL, Intertek or FM. 3M™ Fire Barrier Sealant CP 25WB+ shall be tested to and pass the criteria of ASTM E 814 (UL 1479) Standard Test Method for Fire Tests of Penetration Firestop Systems, ASTM E 1966 (UL 2079) Standard Test Method for Fire Resistive Joint Systems and CAN/ULC S115 Standard Method of Fire Tests of Firestop Systems. 3M™ Fire Barrier Sealant CP 25WB+ meets the requirements of the IBC, IRC, IFC, IPC, IMC, NFPA 5000, NEC (NFPA 70) and NFPA 101.
Typically Specified Division
Division 7
Section 07 84 00 – Firestopping
Related Sections
Section 07 84 16 –Annular Space Protection Section 07 84 43 – Fire-Resistant Joint Sealants Section 07 86 00 – Smoke Seals
Section 07 87 00 – Smoke Containment Barriers Section 07 27 00 –Air Barriers
Section 21 00 00 – Fire Suppression
Section 22 00 00 – Plumbing
Section 26 00 00 – Electrical
For technical support relating to 3M Fire Protection Products and Systems, call: 1-800-328-1687 For more information on 3M Fire Protection Products, visit: www.3m.com/firestop
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