3M 7100138822 Fire Barrier Cast-in Device 6 Inch

Product Description

The 3M 7100138822 is an intumescent cast-in firestop device designed to protect 6-inch metallic penetrations through fire-rated concrete floor assemblies. Installed before the concrete slab is poured, the device attaches directly to the form and creates a pre-formed opening for mechanical, electrical, or plumbing penetrants once the slab has cured and forms are stripped. The intumescent material expands under heat to seal the annular space around the penetrant, providing up to 3 hours of fire protection. Licensed contractors working under fire-stop or firestop inspection programs typically specify and install this product.

This device is suited for commercial and industrial construction applications where concrete floor decks require through-penetration firestop protection. It accommodates metallic pipes, conduit, and similar round penetrants routed through fire-rated concrete floor slabs. The cast-in installation method allows the firestop to be integrated during the concrete pour rather than retrofitted afterward, making it well suited for new construction projects where schedule and inspection continuity are priorities.

Key Features

• Intumescent material expands under elevated heat to seal around metallic penetrants
• Designed for 6-inch metallic penetrations through fire-rated concrete floor assemblies
• Provides up to 3 hours of fire protection
• Cast-in installation attaches directly to the form before the concrete pour
• Creates a finished opening for mechanical, electrical, or plumbing penetrants after slab cure
• Eliminates the need for retrofit firestop work at this penetration type

Compatibility

Designed for use with 6-inch metallic penetrations through fire-rated concrete floor assemblies in new construction applications where a cast-in firestop solution is required.

Installation Notes

Installation is performed by attaching the device to the concrete form prior to the slab pour; verify positioning and penetrant routing before concrete is placed. After the slab has cured and forms are removed, route the appropriate mechanical, electrical, or plumbing penetrant through the formed opening. Work must comply with applicable fire-stop provisions of the International Building Code and be inspected by the authority having jurisdiction. Do not modify or cut the intumescent collar, as alterations may void the fire rating.

Technical Specifications

• Penetration Size: 6 inches
• Penetration Type: Metallic
• Assembly Type: Fire-rated concrete floor
• Fire Protection Rating: Up to 3 hours
• Weight: 3 pounds
• Unit of Measure: Each
• Minimum Order Quantity: 2

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100138822