3M 7000046339 Scotch-weld Epoxy Adhesive 1751 Gray 1 Gal Kit

Product Description

The 3M 7000046339 is a rigid, aluminum-filled two-part epoxy adhesive sold as a 1 gallon kit containing 1 gallon of Part B and 2/3 gallon of Part A. Mixed at a 3:2 ratio, this gray epoxy delivers a 45-minute working life at room temperature and reaches handling strength in approximately 10 hours without the need for heat curing. The formula provides outstanding adhesion to metal substrates and exhibits good void-filling properties, making it well suited for structural bonding applications where gap-filling capability matters. Licensed HVAC techs, industrial maintenance professionals, and fabricators working with metal assemblies rely on this product for durable, load-bearing bonds.

This adhesive is designed for bonding metal-to-metal and similar rigid substrates in both shop and field environments. Its aluminum-filled formulation supports applications where a rigid, filled bond line is required, such as repairing castings, bonding structural metal components, or filling voids in metal assemblies. The room-temperature cure eliminates the need for ovens or heat lamps, making it practical for on-site repair and fabrication work. The kit format provides sufficient volume for production-scale or multi-joint bonding tasks.

Key Features

• Aluminum-filled rigid epoxy formula for high-strength metal bonding
• 3:2 mix ratio (Part B to Part A) for consistent, repeatable results
• 45-minute working life allows time for part positioning and fixturing
• Reaches handling strength in approximately 10 hours at room temperature
• Cures at room temperature — no oven or external heat source required
• Good void-filling properties suited to irregular or porous metal surfaces

Compatibility

Designed for bonding metal substrates including aluminum and similar rigid materials. No specific compatible model numbers or system families were stated in the product data.

Installation Notes

This adhesive should be applied by personnel familiar with two-part epoxy mixing and bonding procedures. Ensure surfaces are clean, dry, and free of oils or oxides before application. Work in a well-ventilated area and follow all applicable safety data sheet guidance for handling epoxy components. Do not disturb bonded assemblies until handling strength is achieved.

Technical Specifications

• Mix Ratio: 3:2 (Part B to Part A)
• Working Life: 45 minutes
• Handling Strength: Approximately 10 hours at room temperature
• Cure Method: Room temperature
• Color: Gray
• Fill: Aluminum-filled
• Kit Contents: 1 gallon Part B, 2/3 gallon Part A
• Unit of Measure: Kit
• Weight: 25 pounds
• Minimum Order Quantity: 2
• UPC: 00021200201059

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000046339