3M 7000006377 Fire Barrier Sealant 1000 Ns 10.1 Oz

Product Description

The 3M 7000006377 is a single-component, water-based intumescent fire barrier sealant designed to seal around penetrations in fire-rated wall and floor assemblies. Sold as a 10.1 fl. oz. cartridge, this non-sag (NS) formulation stays in place on vertical and overhead joints without slumping. It is used to help maintain the fire-resistance rating of through-penetration assemblies by expanding under heat to block the spread of fire, smoke, and hot gases. Licensed contractors and fire-stop installers are the primary users for both new construction and retrofit applications.

This sealant is applied to through-penetrations in fire-rated concrete, masonry, and gypsum wall or floor assemblies. Typical applications include sealing around metal conduit, cable bundles, plastic pipe, and mixed-fill penetrations. The non-sag consistency makes it well suited for vertical joints and overhead applications where other formulations would require backing or support. It is appropriate for both commercial and institutional construction projects where fire-stop code compliance is required.

Key Features

• Non-sag (NS) formula holds position on vertical and overhead surfaces without slumping
• Intumescent action expands under heat to seal openings and slow the spread of fire and smoke
• Water-based, single-component formulation — no mixing required
• 10.1 fl. oz. cartridge fits standard caulking guns for controlled application
• Designed for use in fire-rated wall and floor assembly penetrations

Compatibility

Designed as an OEM-style fire-stop sealant for through-penetration assemblies in fire-rated concrete, masonry, and gypsum construction systems.

Installation Notes

Installation of fire-stop sealants in rated assemblies must comply with applicable building codes and local Authority Having Jurisdiction (AHJ) requirements. A licensed fire-stop installer or qualified contractor should perform the work. Clean the substrate of dust, oil, and loose material before applying the sealant. Do not apply over existing sealant that has not been evaluated for compatibility.

Technical Specifications

• Container Size: 10.1 fl. oz.
• Container Type: Cartridge
• Formulation: Non-Sag (NS), water-based intumescent
• Weight: 1.11 pounds
• UPC: 00051115115356

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000006377