Protection starts with
the right sealant.
Protection starts with
the right sealant.
3M Firestop solutions help electrical, mechanical, and general contractors meet code requirements while preserving the integrity of fire-rated walls, floors, and slabs. Designed for a wide range of penetrations, these products are tested to UL and ASTM standards and backed by certified system listings. From sealants and putty pads to wrap strips and composite sheets, every solution is built to perform in the field and pass inspection.
Summit Electric Supply provides access to the complete range of 3M Firestop solutions. From junction boxes and conduit sleeves to pipe penetrations and modular panels, we stock the products professionals need to meet specifications and pass inspection. Our team helps you identify the right fire-rated solution for your application and keep projects moving on schedule.
Navigate 3M Firestop:
What you can expect from 3M Firestop.
What you can expect from 3M Firestop.
- Inspection Ready – UL listed and color-coded, 3M firestop products come with tested systems and system documentation to help reduce rework and pass inspection the first time.
- Multi-Trade Coverage – Designed for electrical, mechanical, and plumbing applications, 3M firestop materials support multiple penetrants with fewer SKUs.
- Tight-Space Installation – Caulks, wraps, and moldable putties are built for overhead and limited-clearance work, helping crews seal penetrations without removing finishes.
- Long-Term Flexibility – 3M formulas resist shrinking, cracking, and separation. Once installed, they maintain adhesion and seal performance as systems shift or buildings settle over time.
- Simplified Selection – Clear labeling and broad system listings help field teams match the right firestop to the application with less guesswork.
- Retrofit Friendly – Moldable pads, sleeves, and drop-in devices allow firestopping in finished walls and boxes without cutting access panels or opening drywall.
- Jobsite Durable – Formulated for fast-paced work environments, 3M firestop materials hold their shape, stay in place, and adapt to changing conditions.
Featured 3M Firestop Products
Featured 3M Firestop Products
Backing Materials & Accessories
Support the seal and make the system work as intended.
Backing Materials & Accessories
Support the seal and make the system work as intended.
Includes: Fire Barrier Plugs, FS-195 Wrap Strip, Fire Barrier Packing Material
- Fill the gaps around penetrants to help achieve proper sealant depth and maintain UL system depth requirements
- Support sealant performance under fire exposure, vibration, or pressure
- Designed for fast, reliable installation in walls, floors, and mixed penetrant types
Composite Sheets & Wraps
Stop fire without rebuilding the wall.
Composite Sheets & Wraps
Stop fire without rebuilding the wall.
Includes: Fire Barrier Duct Wrap 615+, Fire Barrier Composite Sheet CS-195+
- Create fire-rated barriers around cable trays, ducts, and enclosures without structural reconstruction
- Maintain flexible access while using non-invasive firestopping methods during upgrades or repairs
- Tested to UL and ASTM standards for use in commercial, industrial, and retrofit installations
Firestop Sleeves & Collars
Preformed solutions for consistent results and faster inspections.
Firestop Sleeves & Collars
Preformed solutions for consistent results and faster inspections.
Includes: Ultra Plastic Pipe Device, Fire Barrier Collar
- Install quickly around plastic pipe penetrations without hand-forming or site-built wraps
- Helps meet firestop specs with listed systems designed for plastic pipe
- Built-in intumescent materials expand to close gaps in a fire
Fire Barrier Tapes
Wrap around penetrations with flexible, code-compliant protection.
Fire Barrier Tapes
Wrap around penetrations with flexible, code-compliant protection.
Fire and Water Barrier Tapes
- Apply to conduit, pipe, or wall openings where caulks or collars are difficult to use
- Expand with heat to seal gaps around combustible penetrants during a fire
- Tested to UL 1479 and ASTM E814 for use in fire-rated wall and floor assemblies
Putty Pads & Moldable Firestop
Seal odd shapes and retrofit with confidence.
Putty Pads & Moldable Firestop
Seal odd shapes and retrofit with confidence.
Includes: Fire Barrier Putty Stick, Moldable Putty Pads MPP+
- Hand-moldable materials fill complex shapes like junction boxes, cable bundles, and nonstandard openings
- Ideal for retrofits, repairs, and renovations where wall access is limited or demolition is not possible
- Remain flexible over time without shrinking, cracking, or requiring curing. Performs reliably even in tight or vertical spaces
Penetration Caulk, Sealants, and Sprays
Meet code with firestop caulks and sprays built for real jobsite conditions.
Penetration Caulk, Sealants, and Sprays
Meet code with firestop caulks and sprays built for real jobsite conditions.
Includes: IC 15WB+, Fire Barrier Sealant CP 25WB+, Fire Barrier Sealant FD 150+, FireDam™ Spray 200
- Install easily with standard tools to seal around cable, conduit, and pipe penetrations in walls and floors
- UL 1479 and ASTM E814 tested, with system listings for cable, pipe, and mixed penetrant configurations
- Formulas remain flexible after curing to maintain seals as building components expand, contract, or shift