3M 7100139278 Fire Barrier Silicone Sealant 2000+ Cartridge

Product Description

The 3M 7100139278 is a fire barrier silicone sealant designed for sealing penetrations and joints in fire-rated assemblies. It delivers flexible, durable performance in firestop applications where movement or vibration is a factor. The sealant comes in a standard 10.3 fl oz cartridge, compatible with a standard caulk gun, and weighs 1.166 pounds per unit. Licensed firestop installers, commercial contractors, and HVAC and plumbing tradespeople rely on this product to maintain the fire-resistance rating of walls, floors, and ceilings after mechanical, electrical, or plumbing penetrations are made.

This sealant is applied in commercial and residential construction wherever fire-rated barriers must be restored after pipe, conduit, cable, or duct penetrations. It is suited for use in concrete, masonry, gypsum board, and similar substrates. The silicone formulation remains flexible after cure, making it appropriate for dynamic joints or where thermal cycling is expected. One cartridge covers typical individual penetration seals in standard firestop applications.

Key Features

• Silicone-based formulation maintains flexibility after cure for dynamic joint applications
• 10.3 fl oz cartridge fits standard caulk guns for controlled application
• Intended for use in fire-rated wall, floor, and ceiling penetration assemblies
• Sold individually; packaged 12 units per case
• Lightweight at 1.166 pounds per cartridge for easy handling on the job

Compatibility

Designed as an OEM-style firestop sealant for use in fire-rated penetration assemblies involving pipes, conduit, cables, and ducts through concrete, masonry, and gypsum board substrates.

Installation Notes

Installation of firestop sealants in fire-rated assemblies should be performed by qualified contractors familiar with applicable building codes, including IBC and local fire code requirements. Clean and dry the substrate before applying sealant, and follow the listed firestop system drawings for joint width and depth specifications. Do not paint over or disturb cured sealant in a way that compromises the fire-rated assembly. Allow full cure time before the assembly is returned to service.

Technical Specifications

• Size: 10.3 fl oz
• Style: Cartridge
• Weight: 1.166 pounds
• UPC: 00051115115585
• Unit of Measure: Each
• Case Quantity: 12 per case

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100139278