Our 3M™ Fire Barrier Block B258 is a pre-formed foam block designed for easy installation to effectively seal larger openings against smoke, toxic gas and flame. It is simple to use and helps reduce sound transmission.

Our 3M™ Fire Barrier Block B258 is a pre-formed foam block designed for easy installation to effectively seal larger openings against smoke, toxic gas and flame. It is simple to use and helps reduce sound transmission. read less

A Better Way to Fill Large GapsWhen sealing larger cavities, use 3M™ Fire Barrier Block B258 t...150 read more

A Better Way to Fill Large GapsWhen sealing larger cavities, use 3M™ Fire Barrier Block B258 to restore the integrity of the wall with a simple "stack, seal, and done" application, without the use of special tools. The blocks are engineered to remain securely in place, eliminating traditional wire mesh reinforcements. Pre-formed blocks help technicians fill large openings quickly. The material is easy to trim on site without special tools, achieving a tight, custom fit. No cure time is required, which means installation is completed faster, and the blocks are paintable with primer for a more seamless appearance.The blocks are fully re-enterable and reusable, saving time and money, while minimizing waste. Once the opening is filled, seal around the perimeter and any penetrating items with 3M™ Fire Barrier Rated Foam FIP 1-Step or other 3M™ fire barrier sealants (sold separately).Recommended Applications Blank openings Metal pipes Cables Cable trays Insulated pipes, combination penetrationsFully Tested and Approved3M™ B258 Fire Barrier Blocks are firestop tested to the criteria of ASTM E 814/UL 1479 Standard Test Method for Fire Tests of Penetration Firestop Systems, ASTM E 84/UL 273 Standard Test Method for Surface Burning Characteristics of Building Materials, ASTM E 90 Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements, and ASTM E 413 Classification for Rating Sound Insulation.Reliable and Affordable Fire ProtectionEffective and easy to install, 3M™ Fire Barrier Block B258 are part of 3M's 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. read less

Our 3M™ Fire Barrier Moldable Putty Pads MPP+ are a one-part firestop material used in various fire-rated assemblies, such as electrical box protection. Designed to prevent the spread of fire, smoke and noxious gasses, this intumescent material comes ready to use in convenient 1/10 (2.54 mm) thick pads that are conformable by hand with no mixing or tools. Pads are firestop tested up to 4 hours.

Our 3M™ Fire Barrier Moldable Putty Pads MPP+ are a one-part firestop material used in various fire-rated assemblies, such as electrical box protection. Designed to prevent the spread of fire, smoke and noxious gasses, this intumescent material comes ready to use in convenient 1/10 (2.54 mm) thick pads that are conformable by hand with no mixing or tools. Pads are firestop tested up to 4 hours. read less

Pliable, Conformable and Shapeable for Exacting CoverageFor applications requiring conformable cover...150 read more

Pliable, Conformable and Shapeable for Exacting CoverageFor applications requiring conformable coverage, these pliable 3M™ Fire Barrier Moldable Putty Pads MPP+ meet a full range of firestop needs that would be impractical with strips, wraps or rolls. Ready to use in convenient 1/10” (2.54 mm) thick pads, this firestop material is designed for excellent adhesion to most construction substrates and is non-corrosive when applied to metal – ideal for use with listed steel or plastic electrical outlet boxes. It is also safe for applications including synthetic cable jackets, making it suitable for firestopping cable bundles. It won’t crumble or dry out, exhibits excellent aging properties and is re-enterable to save time and money after installation. And the pads are extremely simple and cost-effective to install: technicians mold the material by hand directly onto the substrate without mixing or tools. For larger applications, self-adhering pads can be molded together.Recommended Applications Protection of membrane penetrations for listed metallic and non-metallic electrical boxes Wall opening protective to meet building requirements Seal gaps between cables in multiple penetrations (including fiber optic inner duct) Insulated pipe, electrical conduit and metal pipe penetrationsFully Tested and ApprovedThe intumescent 3M™ Fire Barrier Moldable Putty Pads MPP+ are firestop tested up to 4 hours in accordance with ASTM E 814 (UL 1479). They are tested in accordance with ASTM E 119 (UL 263) up to 2 hours when installed in accordance with the UL wall-opening protective listing (UL Category CLIV), and help reduce noise transfer (STC-Rating of 52 when tested on back-to-back electrical boxes).Reliable and Affordable Fire ProtectionEffective and easy to install, 3M™ Fire Barrier Moldable Putty Pads MPP+ are part of 3M's 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. read less

3M™ Fire Barrier Plenum Wrap 5A+ is a fire-resistant wrap that consists of an inorganic fiber blanket encapsulated with a scrim-reinforced foil. We designed this plenum wrap as a strong, lightweight and flexible material for easy installation. This product is engineered to create a fire-resistive enclosure that can reduce flame and smoke spread ratings to acceptable levels in return air plenums.

3M™ Fire Barrier Plenum Wrap 5A+ is a fire-resistant wrap that consists of an inorganic fiber blanket encapsulated with a scrim-reinforced foil. We designed this plenum wrap as a strong, lightweight and flexible material for easy installation. This product is engineered to create a fire-resistive enclosure that can reduce flame and smoke spread ratings to acceptable levels in return air plenums. read less

Easy Installation for Tough Fire ProtectionLightweight, yet strong, 3M™ Fire Barrier Plenum Wr...150 read more

Easy Installation for Tough Fire ProtectionLightweight, yet strong, 3M™ Fire Barrier Plenum Wrap 5A+ is a fire-resistant wrap. 3M designed this wrap with an inorganic fiber blanket encapsulated with a scrim-reinforced foil, creating a fire-resistive enclosure that can reduce the flame and smoke spread ratings to acceptable levels in return air plenums. This product is tested to UL 910 (NFPA 262), UL 1887, and ASTM E 84 and is made with flexible material for easy installation. We constructed this material to be a non-asbestos wrap with a 6 pcf (96 kg/m3) density.Recommended Applications3M™ Fire Barrier Plenum Wrap 5A+ is a protective covering which helps reduce the flame propagation and smoke generation of pipes and cables, including: Single and multiple 1-inch diameter (25.4 mm) and larger plastic pipe and cable bundles PVC CPVC PB PE PP PVDF ASB pipes in return air plenumsInnovative and Flexible Fire-Resistant WrapWrap and protect plastic pipes in plenum areas more easily with 3M™ Fire Barrier Plenum Wrap 5A+. Enjoy the lightweight installation and heavyweight fire protection that comes from this innovative solution. Discover the benefits from a fire-resistant wrap designed and tested to reduce external flame propagation and smoke generation. read less

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.

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. read less

Tried and Tested Fire ProtectionReady-to-use, 3M™ Fire Barrier Sealant FD 150+ is a latex-base...150 read more

Tried and Tested Fire ProtectionReady-to-use, 3M™ Fire Barrier Sealant FD 150+ is a latex-based elastomeric sealant. This gun-grade sealant cures when dispensed to form a monolithic flexible firestop seal and, when properly installed, this product provides up to 4-hour fire protection in tested and listed systems. This sealant is formulated to help prevent the spread of fire, smoke and noxious gas and firestop joints and through penetrations through floor slabs, walls and other fire-rated building partitions and assemblies. This firestop sealant offers a continuous seal with ± 19% movement capability for construction joints and typical pipe movement and exhibits excellent adhesion to a full range of construction substrates.Recommended Applications Construction joints Piping, all non-combustible and small diameter combustible CablesFire Barrier Features3M™ Fire Barrier Sealant FD 150+ acts as an acoustic barrier by minimizing noise transfer (STC-Rating of 56 when tested in a STC 56-rated wall assembly). This fire barrier sealant is designed to be water-based for easy installation, cleanup and disposal. In addition, the high-solids formula produces limited shrinkage. This halogen-free sealant is sag-resistant and has an excellent caulk rate (applied with conventional caulking equipment). It dries to the touch in 30 – 60 minutes and can be painted. In addition, this sealant has been engineered to be re-enterable and repairable.Reliable and Affordable Fire ProtectionEffective and easy to install, 3M™ Fire Barrier Sealant FD 150+ is part of 3M's 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. read less

3M™ Fire Barrier Plenum Wrap 5A+ is a fire-resistant wrap that consists of an inorganic fiber blanket encapsulated with a scrim-reinforced foil. We designed this plenum wrap as a strong, lightweight and flexible material for easy installation. This product is engineered to create a fire-resistive enclosure that can reduce flame and smoke spread ratings to acceptable levels in return air plenums.

3M™ Fire Barrier Plenum Wrap 5A+ is a fire-resistant wrap that consists of an inorganic fiber blanket encapsulated with a scrim-reinforced foil. We designed this plenum wrap as a strong, lightweight and flexible material for easy installation. This product is engineered to create a fire-resistive enclosure that can reduce flame and smoke spread ratings to acceptable levels in return air plenums. read less

Easy Installation for Tough Fire ProtectionLightweight, yet strong, 3M™ Fire Barrier Plenum Wr...150 read more

Easy Installation for Tough Fire ProtectionLightweight, yet strong, 3M™ Fire Barrier Plenum Wrap 5A+ is a fire-resistant wrap. 3M designed this wrap with an inorganic fiber blanket encapsulated with a scrim-reinforced foil, creating a fire-resistive enclosure that can reduce the flame and smoke spread ratings to acceptable levels in return air plenums. This product is tested to UL 910 (NFPA 262), UL 1887, and ASTM E 84 and is made with flexible material for easy installation. We constructed this material to be a non-asbestos wrap with a 6 pcf (96 kg/m3) density.Recommended Applications3M™ Fire Barrier Plenum Wrap 5A+ is a protective covering which helps reduce the flame propagation and smoke generation of pipes and cables, including: Single and multiple 1-inch diameter (25.4 mm) and larger plastic pipe and cable bundles PVC CPVC PB PE PP PVDF ASB pipes in return air plenumsInnovative and Flexible Fire-Resistant WrapWrap and protect plastic pipes in plenum areas more easily with 3M™ Fire Barrier Plenum Wrap 5A+. Enjoy the lightweight installation and heavyweight fire protection that comes from this innovative solution. Discover the benefits from a fire-resistant wrap designed and tested to reduce external flame propagation and smoke generation. read less

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.

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. read less

Tried and Tested Fire ProtectionReady-to-use, 3M™ Fire Barrier Sealant FD 150+ is a latex-base...150 read more

Tried and Tested Fire ProtectionReady-to-use, 3M™ Fire Barrier Sealant FD 150+ is a latex-based elastomeric sealant. This gun-grade sealant cures when dispensed to form a monolithic flexible firestop seal and, when properly installed, this product provides up to 4-hour fire protection in tested and listed systems. This sealant is formulated to help prevent the spread of fire, smoke and noxious gas and firestop joints and through penetrations through floor slabs, walls and other fire-rated building partitions and assemblies. This firestop sealant offers a continuous seal with ± 19% movement capability for construction joints and typical pipe movement and exhibits excellent adhesion to a full range of construction substrates.Recommended Applications Construction joints Piping, all non-combustible and small diameter combustible CablesFire Barrier Features3M™ Fire Barrier Sealant FD 150+ acts as an acoustic barrier by minimizing noise transfer (STC-Rating of 56 when tested in a STC 56-rated wall assembly). This fire barrier sealant is designed to be water-based for easy installation, cleanup and disposal. In addition, the high-solids formula produces limited shrinkage. This halogen-free sealant is sag-resistant and has an excellent caulk rate (applied with conventional caulking equipment). It dries to the touch in 30 – 60 minutes and can be painted. In addition, this sealant has been engineered to be re-enterable and repairable.Reliable and Affordable Fire ProtectionEffective and easy to install, 3M™ Fire Barrier Sealant FD 150+ is part of 3M's 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. read less

Thin, lightweight and flexible, 3M™ Fire Barrier Duct Wrap 615+ provides excellent insulating capabilities and offers a space-saving alternative to traditional bulky fire protection methods obtained through a gypsum wall shaft or enclosure. This wrap is commonly used in commercial kitchen grease ducts, as well as ventilation ducts.

Thin, lightweight and flexible, 3M™ Fire Barrier Duct Wrap 615+ provides excellent insulating capabilities and offers a space-saving alternative to traditional bulky fire protection methods obtained through a gypsum wall shaft or enclosure. This wrap is commonly used in commercial kitchen grease ducts, as well as ventilation ducts. read less

Lightweight, Thin and Low-Profile Protection3M™ Fire Barrier Duct Wrap 615+ is a fire-rated du...150 read more

Lightweight, Thin and Low-Profile Protection3M™ Fire Barrier Duct Wrap 615+ is a fire-rated duct wrap consisting of an inorganic fiber blanket encapsulated with a scrim-reinforced foil. Because the blanket is adhered to the foil scrim it will resist wrapping and slumping. This non-asbestos wrap installs easily due to its high flexibility, low weight and thin profile – making it an ideal choice for duct enclosure systems. It is a proven alternative to 1- and 2-hour fire resistant shaft enclosures for grease ducts. 3M™ Fire Barrier Duct Wrap 615+ performs in temperatures up to 2192°F/1200°C.3M™ Fire Barrier Duct Wrap 615+ is the only fire-rated duct wrap product you'll ever need to help protect both grease ducts and air ducts while passing the necessary fire tests to achieve up to 2-hour fire-resistance requirements. It is third party certified to ASTM E2336 (grease duct test standard) and ISO 6944 (air duct test standard). It is tested and listed with UL and Intertek, meets IBC, IMC, UMN, NFPA and other key life safety codes. It is listed by California State Fire Marshall (listing No. 2440-0941:5555).Recommended Applications Fire resistive enclosure for commercial kitchen grease ducts Stair pressurization ducts Life safety air and ventilation ducts read less

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.

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. read less

Tried and Tested Fire ProtectionReady-to-use, 3M™ Fire Barrier Sealant FD 150+ is a latex-base...150 read more

Tried and Tested Fire ProtectionReady-to-use, 3M™ Fire Barrier Sealant FD 150+ is a latex-based elastomeric sealant. This gun-grade sealant cures when dispensed to form a monolithic flexible firestop seal and, when properly installed, this product provides up to 4-hour fire protection in tested and listed systems. This sealant is formulated to help prevent the spread of fire, smoke and noxious gas and firestop joints and through penetrations through floor slabs, walls and other fire-rated building partitions and assemblies. This firestop sealant offers a continuous seal with ± 19% movement capability for construction joints and typical pipe movement and exhibits excellent adhesion to a full range of construction substrates.Recommended Applications Construction joints Piping, all non-combustible and small diameter combustible CablesFire Barrier Features3M™ Fire Barrier Sealant FD 150+ acts as an acoustic barrier by minimizing noise transfer (STC-Rating of 56 when tested in a STC 56-rated wall assembly). This fire barrier sealant is designed to be water-based for easy installation, cleanup and disposal. In addition, the high-solids formula produces limited shrinkage. This halogen-free sealant is sag-resistant and has an excellent caulk rate (applied with conventional caulking equipment). It dries to the touch in 30 – 60 minutes and can be painted. In addition, this sealant has been engineered to be re-enterable and repairable.Reliable and Affordable Fire ProtectionEffective and easy to install, 3M™ Fire Barrier Sealant FD 150+ is part of 3M's 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. read less