3M Fire Barrier CP-25WB+
Dependable and Easy-to-Use Firestop Sealant
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).
- Description
- Downloads
- Applications
- Specifications
Description
- Firestop tested for through penetration applications up to 4 hours in accordance with ASTM E 814 (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
- 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
Download the MSDS PDF: MSDS
Recommended 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

Related Products
-
3M IC 15WB Intumescent Sealant
Designed to prevent the spread of fire, smoke and noxious gas, 3M™ Fire Barrier Sealant IC 15WB+ is a one-part, gun-grade, latex-based, intumescent firestop sealant. This firestop sealant provides up to 3-hour fire protection in accordance with ASTM E 814 (UL 1479) and CAN/ULC S115. In addition, this product is fire resistance tested for static construction joint systems in accordance with ASTM E 1966 (UL 2079). This sealant has been formulated to form a monolithic firestop seal that also helps minimize sound transfer, acting as a barrier to airborne sound transmission (STC-Rating of 54 when tested in a STC 54-rated wall assembly)
Recommended Applications: HVAC ducts and vents; Metallic and non-metallic pipes, including CPVC 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. -
Read MoreQuick ViewSpecSeal Cast In Place Device
Eliminate core-drilling and firestop after the concrete pour with SpecSeal CID Cast-In Firestop Devices. SpecSeal Cast-In Devices are a sleeve, concrete form and firestop rolled into a single device. SpecSeal Cast-In Devices are available in a range of sizes and heights to accommodate penetrant up to 6″ Trade Size penetrants and concrete depths of up to 36″.
-
Read MoreQuick ViewSpecSeal Collar for Plastic Pipes
SpecSeal SSC Firestop Collars are factory-manufactured firestop devices sized to plastic pipes of up to 6 in. Trade Size. SSC Collars consist of a restraining collar with a factory applied intumescent ensuring the correct amount of material is applied every time. Under fire exposure, SSC Collars quickly expand and collapse combustible piping forming a dense char, resisting the passage of smoke and flame.
-
Read MoreQuick ViewSpecSeal SSS Sealant
SSS Intumescent Firestop Sealant
SpecSeal SSS Firestop Sealant is a premium grade water-based Intumescent firestop sealant. SpecSeal SSS Sealant incorporates a proprietary two-stage intumescent technology making it the go to choice for any combustible or non-combustible penetrants. As little as a 1/2″ applied depth of SSS Sealant is required to provide up to a 4 Hr Fire resistance rating when tested to ASTM E814/UL 1479. -
STI BIOSTOP 1-1/2″ Fire Rated Pipe Collar
Pipe Collars are prefabricated for open and closed through-penetration firestop systems using 1 1/2″(38 mm) to 6″ (152 mm) plastic pipe. An easy locking tab assures easy installation. The collar design greatly reduces the time and expense that is required to install competitive collars.
-
Read MoreQuick ViewSpecSeal LCI300 Sealant
SpecSeal® LCI Sealant is a versatile and economical intumescent sealant that has excellent caulking properties as well as high build properties on vertical or overhead surfaces. This single component sealant may be caulked (standard cartridge or bulk loaded), knifed or troweled. In addition, SpecSeal® LCI Sealant does not contain PCB’s or asbestos.
SpecSeal® LCI Sealant is storage stable (when stored according to the manufacturer’s recommendations), and will not separate or shrink when dried (when applied according to the manufacturer's recommendations). SpecSeal® LCI Sealant will adhere to all common construction and penetrant materials and contains no solvents that might adversely effect plastic pipes or cable jackets. -
Read MoreQuick ViewSpecSeal SSB Firestop Pillows
SpecSeal SSB Firestop Pillows consist of a mineral fiber core material sealed with a water-resistant intumescent membrane. This coated core material is then heat-sealed in a tough, nonirritating, fireretardant poly bag. They easily compress and conform around any penetrant. Equally suited for new or existing conditions, SpecSeal Pillows make short work of even the most complex through-penetration firestop conditions.
-
Read MoreQuick ViewSpecSeal Restraint Collar, Pre-Cut or 25 Ft Roll
Metal strip for making restraint collar for SSW Intumescent strips
Cut to length, wrap around pipe with SSW strips in place
Forms collar to contain Blue or Red Strips
Roll is 25 Feet long -
SpecSeal AS205 Elastomer Spray, 5 Gal
SpecSeal® AS200 Elastomeric Spray is designed primarily for the protection of construction joints, curtain wall safing gaps, and certain through-penetrations.
This fire protective joint coating is a water-based, non-halogenated elastomeric coating that contains no solvents, inorganic fibers, nor asbestos. The coating dries to form a flexible, moisture resistant film that can adhere to all common construction surfaces. It provides for up to 50 percent movement. SpecSeal® AS200 is thixotropic and is capable of being applied by airless spray, brush or trowel. -
SPEC SEAL EZD22 EZ-PATH FIRE RATED PATHWAY
The EZ Path® Series 22 Fire Rated Pathway is a maintenance-free pathway device designed to allow cables to penetrate fire-rated walls without the need for firestopping. This device features a built-in fire sealing system that automatically adjusts to the amount of cables installed. Once installed in a fire barrier, cables can be easily added or removed at any time without the need to remove or reinstall firestopping materials.














