3M FB-136 Fire Block Sealant Cartridge, 10.1 oz, Gray, for Firestop Applications

3M FB-136 Fire Block Sealant Cartridge, 10.1 oz, Gray

3M FB-136 Fire Block Sealant is a gray, single-component sealant packaged in a 10.1 oz cartridge for use in fireblocking and firestop applications. Formulated to fill gaps, joints, and penetrations, this fire block sealant helps maintain the integrity of fire-rated wall and floor assemblies when installed as directed. The FB-136 formula is intended to help installers close small gaps and penetrations as part of a broader fireblocking strategy in fire-rated construction assemblies. The 10.1 oz cartridge is sized to fit standard caulking guns, making it easy to dispense a controlled, consistent bead during installation. Its gray color coordinates well with common construction materials for a clean, finished appearance.

Key Features

• Cartridge Packaging: Supplied in a 10.1 oz cartridge sized for standard manual and pneumatic caulking guns for controlled dispensing.
• Gray Color: Neutral gray finish blends with typical building substrates for a clean, professional look once cured.
• Fireblock Sealant Formulation: Designed to seal gaps, joints, and small penetrations as part of fireblocking and firestop systems.
• Single-Component Application: Ready-to-use cartridge format requires no mixing, simplifying jobsite prep and application.
• Versatile Use: Suitable for sealing around pipes, conduit, cable, and other penetrations in fire-rated assemblies.
• Fire-Rated Assemblies: Intended for use within fireblocking strategies for fire-rated wall, floor, and penetration assemblies.
• Model FB-136: Identified by model number FB-136 within 3M's line of fireblock sealants.

Technical Specifications

• Product Type: Fire Block Sealant
• Packaging Size: 10.1 oz Cartridge
• Color: Gray
• Model: FB-136
• Brand: 3M

Typical Applications

• Firestopping Penetrations in Fire-Rated Walls and Floors
• Sealing Gaps Around Pipes, Conduit, and Cable Penetrations
• Commercial and Residential Construction Projects
• Renovation and Retrofit Fireblocking Work
• General Fireblock Sealing in Multi-Family and Commercial Buildings

Why 3M?

3M is a recognized manufacturer of building and fire protection materials, and the FB-136 Fire Block Sealant reflects that standard with a dependable, ready-to-use 10.1 oz cartridge format. The single-component gray sealant is formulated specifically for fireblocking and firestop applications, giving contractors a straightforward option for maintaining fire-rated assembly performance. Specifying 3M means choosing a widely trusted name in construction sealants and fireblocking materials.