3M Fire Barrier Sealant IC 15 WB+
Establish a Strong Firestop Barrier
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).
- Description
- Downloads
- Applications
- Specifications
Description
- Firestop tested for through penetration applications for up to 3 hours in accordance with ASTM E 814 (UL 1479) and CAN/ULC S115
- Sealant designed to help minimize sound transfer
- Firestop sealant is compatible with CPVC piping
- Water-based and paintable sealant provides easy application and clean-up
- Exceptional adhesion for long-term performance
- Applied with conventional caulking equipment with excellent caulk rate
- Sag-resistant properties offer clean application as well as strong adhesion
- Sealant is re-enterable and repairable
- Fire resistance tested for static construction joint systems in accordance with ASTM E 1966 (UL 2079)
Download the MSDS PDF: MSDS
Recommended Applications
- HVAC ducts and vents
- Metallic and non-metallic, 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

Related Products
-
Firestop Closet Toilet Flange Gasket
SpecSeal Closet Flange Firestop Gaskets are one-piece, molded rubber, intumescent pads that install beneath a 3″ (76 mm) or 4″ (102 mm) closet flange to effectively firestop the opening. The die cut rubber gasket is perforated to delineate removable inserts sized to accommodate various outer diameters of toilet flanges.
-
BIO Firestop Pillow 3″ X 9″ X 6″
Intumescent Firestop Pillows are designed for use primarily in large openings with cables, cable trays, blank openings or multiple penetrating items. In the event of a fire, BIO™ Firestop Pillows will prevent the spread of flames and hot gases through the openings. Since no cure time is required, BIO™ Firestop Pillows are ready to install. BIO™ Firestop Pillows are reusable since they can be removed and reinstalled if necessary.
-
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.
-
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. -
SpecSeal FS200 2″ Ready Sleeve
SpecSeal Ready Sleeves are designed for new cabling penetrations where sleeves are required. Each Ready Sleeve kit includes a preformed steel sleeve with rolled edges, steel escutcheon plates with intumescent gaskets, and a dosage of our SpecSeal SSP Firestop Putty. The rolled edges of each Ready Sleeve eliminate the need for bushings while the included escutcheon plates and gaskets take the place of steel strut and strap supports.
SpecSeal® Ready® Sleeve Pathways are used to protect or support cables in both nonrated and rated construction. SpecSeal® Ready® Sleeve Pathways are suitable for use in all common constructions including concrete floors, concrete walls, concrete block walls, and gypsum board/stud wall assemblies up to 10” (254 mm) thick. -
Fire Safing 4″ X 24″ X 48″ , 4 Panels
Mineral Wool Fire Safing is designed to provide enhanced fire protection in perimeter fire containment systems, floor and wall penetrations, construction joints, and other firestopping applications. It is non-combustible, moisture-resistant, non-corrosive, non-deteriorating, mildew-resistant and vermin-resistant. Mineral Wool FireStop Safing is primarily used as a backing material for firestop caulks and sealants.
-
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″.
-
3M Fire Dam 150 Elastomeric
Our 3M™ Fire Barrier Sealant FD 150+ is a gun-grade, latex-based, elastomeric sealant that cures upon exposure to the atmosphere to form a monolithic flexible firestop seal. When properly installed, this sealant helps control the spread of fire, smoke and noxious gasses before, during and after exposure to a fire and exhibits excellent adhesion to a full range of construction substrates.
We have the red version in stock, but it is also available in blue and limestone grey.Recommended Applications: Construction joints; Piping, all non-combustible and small diameter combustible; Cables.
-
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. -
3M CP25WB+ Elastomeric Sealant
Tough and ready-to-use, 3M™ Fire Barrier Sealant CP 25WB+ is a high-performance intumescent sealant that dries to form a monolithic firestop seal. This sealant also acts as a barrier to airborne sound transmission. This sealant is designed to help control the spread of fire, smoke and noxious gases before, during and after exposure to a fire.
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.














