3M 7000059397 Fire Barrier Moldable Putty Stix Mp+

Product Description

The 3M 7000059397 is a one-part, ready-to-use intumescent moldable putty stick engineered to firestop through-penetrations and blank openings in fire-rated assemblies. Sold individually, this dark red putty stick measures 1.45 inches by 6 inches and weighs 0.55 pounds. It requires no mixing and is re-enterable, meaning it can be removed and reapplied during rework or inspection. When exposed to heat, the intumescent material expands to seal openings and block the passage of fire, smoke, and noxious gases. Licensed contractors and fire-stop specialty installers apply it where cables, conduit, pipes, or other penetrations pass through rated wall or floor assemblies.

This putty stick is suited for residential and commercial construction and renovation projects where fire-rated assemblies require sealing at through-penetrations or blank openings. It is commonly used to fill voids in large openings and complex firestop systems. Beyond fire resistance, the material provides airborne sound reduction properties, making it applicable in assemblies that require an STC rating. It also functions as a draft and cold smoke seal in systems requiring an L-Rating, adding multi-hazard protection in a single product.

Key Features

• Provides up to 4 hours of fire protection in tested firestop assemblies
• Intumescent formulation expands under heat to seal penetrations against fire and smoke
• Re-enterable and ready to use with no mixing required
• Acts as a draft and cold smoke seal for systems requiring an L-Rating
• Airborne sound reduction characteristics support assemblies requiring an STC rating
• Meets IBC, NFPA 5000, NEC (NFPA 70), NFPA 101, and NBC (Canada) Building Code requirements

Compatibility

Designed for use in fire-rated wall and floor assemblies where through-penetrations or blank openings require intumescent firestop treatment per applicable building and life safety codes.

Installation Notes

Installation should be performed by a licensed contractor or certified firestop installer in accordance with the Authority Having Jurisdiction (AHJ) and applicable codes including IBC and NFPA standards. De-energize any electrical systems and ensure the work area is safe before beginning penetration sealing work. Form the putty by hand to the required shape and press firmly into the opening, following the tested system design for the specific assembly. Do not substitute materials or dimensions that deviate from the evaluated firestop system listing.

Technical Specifications

• Dimensions: 1.45 inches x 6 inches
• Weight: 0.55 pounds
• Color: Dark red
• Fire Protection Rating: Up to 4 hours
• Unit of Measure: Each
• Minimum Order Quantity: 12
• UPC: 00051115165610
• Certifications: IBC, NFPA 5000, NEC (NFPA 70), NFPA 101, NBC (Canada)

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000059397