3M Fire Barrier Sealant IC 15WB+, Yellow, 4.5 Gallon (Pail), 1 Each/Drum

• Applied with conventional caulking equipment with excellent caulk rate
• Exceptional adhesion for long-term performance
• Fire resistance tested for static construction joint systems in accordance with ASTM E 1966 (UL 2079)
• Firestop tested for through penetration applications for up to 3 hours in accordance with ASTM E 814 (UL 1479) and CAN/ULC S115
• Sag-resistant properties offer clean application as well as strong adhesion
• Sealant designed to help minimize sound transfer
• Sealant is re-enterable and repairable
• Water-based and paintable sealant provides easy application and clean-up

Engineered to form a monolithic seal after drying, 3M Fire Barrier Sealant IC 15WB+ is a yellow, one-part, gun-grade, intumescent firestop sealant that provides up to 3-hour fire protection in tested and listed systems. This helps prevent the spread of fire, smoke and noxious gas, while also acting as an acoustic barrier to help minimize noise transfer.

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).

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

Formulated for Protection and Ready for Inspection
We’ve formulated 3M™ Fire Barrier Sealant IC 15WB+ to be easily cleaned-up with water. This sealant is paintable, as well as re-enterable and repairable. It is a halogen-free sealant that features exceptional adhesion, excellent caulk rate and sag-resistance. In addition, inspectors can instantly recognize 3M™ Fire Barrier Sealant IC 15WB+ by its distinctive yellow color.

3M™ Fire Barrier Sealant IC 15WB+ firestops through penetrations passing through fire-rated floor, floor/ceiling or wall assemblies, as well as other fire-rated interior building partitions and assemblies (e.g. static construction joints or blank openings). In addition, the unique intumescent property of this material allows 3M™ Fire Barrier Sealant IC 15WB+ to expand and help maintain a firestop penetration seal for up to 3 hours of fire exposure. 3M™ Fire Barrier Sealant IC 15WB+ bonds to most construction substrates, including: gypsum wallboard, concrete, metals, wood, plastic and cable jacketing. This sealant meets the intent of LEED® VOC environmental regulations, International Building Code (IBC) and other key life safety building code requirements.

Reliable and Affordable Fire Protection
Effective and easy to install, 3M™ Fire Barrier Sealant IC 15WB+ is part of our family of fire protection products that offer the broadest, long-lasting solutions for a variety of commercial, industrial and residential applications. As a trusted leader in the fire protection industry, 3M offers a broad line of affordable products designed to meet the most demanding firestop requirements. Find the solution you need from the industry-preferred line of fire protection products.

Trusted 3M Firestop Sealant

The 3M Fire Barrier Sealant IC 15WB+ is a reliable firestop solution designed to prevent the spread of fire, smoke, and noxious gases. This yellow, one-part, gun-grade sealant offers up to 3-hour fire protection, meeting strict safety standards.

Its intumescent properties allow it to expand during fire exposure, maintaining a secure seal. The model IC 15WB+ is recognized for its distinctive yellow color, making inspection straightforward and efficient.

Effective Fire Resistance Testing

This sealant is fire resistance tested for static construction joint systems following ASTM E 1966 (UL 2079) standards. It also meets firestop requirements for through penetration applications up to 3 hours under ASTM E 814 (UL 1479) and CAN/ULC S115.

These certifications ensure the 3M Fire Barrier Sealant IC 15WB+ performs well in rated wall, floor, and floor-ceiling assemblies, providing dependable protection in various building applications.

Versatile 4.5 Gallon Pail

Supplied in a convenient 4.5 gallon pail format, this sealant is suitable for large-scale projects requiring consistent application. The packaging supports easy handling and storage on job sites.

The pail format complements the sealant’s gun-grade consistency, allowing for smooth application with conventional caulking equipment and excellent caulk rate.

Strong Adhesion And Soundproofing

3M Fire Barrier Sealant IC 15WB+ offers exceptional adhesion to various substrates including gypsum wallboard, concrete, metals, wood, and plastics. This ensures long-term durability and a monolithic seal.

Besides fire protection, it also helps minimize sound transfer with an STC rating of 54 when tested in a rated wall assembly, making it a dual-purpose solution for fire and acoustic barriers.

Re-Enterable Water-Based Sealant

This water-based sealant is paintable, re-enterable, and repairable, simplifying maintenance and future modifications. Its sag-resistant properties ensure clean application without mess or drips.

Designed for easy cleanup with water, the 3M Fire Barrier Sealant IC 15WB+ is halogen-free and environmentally conscious, meeting LEED VOC regulations and building code requirements.