3M Scotch-Weld SCOTCH-WELD EC-1751 B/A (2-Oz-Kit)

Additional Product Information

Overview

This two-part, gray, aluminum-filled epoxy adhesive is designed for high-strength structural bonding in aviation and MRO operations. It is ideal for repairing metal components such as holes, dents, and cracks. Teams rely on it for its excellent adhesion, gap-filling capabilities, and consistent performance under both room temperature and elevated cure conditions, ensuring reliability in critical aircraft maintenance and AOG scenarios.

Key Technical Specs for 3M Scotch-Weld Epoxy Adhesive 1751 B/A

• Type: Two-part, room-temperature curing, aluminum-filled epoxy adhesive
• Size/Volume: Mix ratio by weight 2:1; by volume 3:2
• Color: Gray (Base), Amber (Accelerator)
• Viscosity/Consistency: Base 145 sec, Accelerator 125 sec (20 gms @ 50 psi thru 0.104 orifice)
• Work/Cure Time: 45 minutes work life; handling strength 8 12 hours; full cure 7 days at 75 F (24 C)
• Tensile/Peel Strength: Overlap shear 2,570 psi (Aluminum to Copper); T-Peel 4 5 piw
• Shore Hardness: D 75 80
• Service Temperature: -67 F to 300 F (-55 C to 149 C) depending on substrate and aging
• Typical Uses: Metal bonding, gap filling, structural repair of aircraft components
• Shelf Life: 2 years unopened, stored at 60 80 F (15 27 C)

Approvals & Specifications

• Meets internal 3M quality system requirements (ISO 9001:2000)
• Compatible with MIL- and OEM-level aircraft adhesive requirements
• Typical adherence to ASTM D-1002, ASTM D-1876 test standards

Typical Aircraft MRO / AOG Applications

• Repair of structural aluminum panels and assemblies
• Gap-filling and reinforcement of metal joints
• Bonding steel, aluminum, and copper components in aircraft systems
• Rapid on-wing repairs during AOG scenarios
• Maintenance of critical load-bearing assemblies in MRO facilities

Compatibility & Safety Notes

• Compatible with steel, aluminum, copper, certain plastics, rubber, and glass (primer required for glass)
• Surface preparation required: solvent wipe, abrasion, and primer for optimal bond
• Use personal protective equipment (gloves, eye protection) to minimize skin contact
• Handle solvents with caution; follow all safety and environmental guidelines

Packaging & Procurement

• Available in standard two-part kits with pre-measured Base and Accelerator
• Market packs suitable for both production line and field applications
• Store at 60 80 F (15 27 C) for maximum shelf life
• Easy-to-mix and apply using spatula, trowel, or automated dispensing equipment

Why 3M Scotch-Weld Epoxy Adhesive 1751 B/A is Chosen for AOG / MRO

• Reliable adhesion for structural metal repairs in urgent AOG situations
• Versatile application across multiple substrates and aircraft systems
• Portable kits for immediate field use without specialized equipment
• Durable, long-lasting bond performance even under environmental stress

Practical Suggestions for Your Team (AOG Mindset)

• Stock pre-measured kits for high-demand repair operations
• Train maintenance teams on proper surface preparation and cure times
• Keep solvents and PPE readily available for safe handling
• Monitor temperature and application conditions to ensure optimal cure and bond strength

Manufacture / Aviation Spec Codes

• Manufacturer: 3M Industrial Adhesives and Tapes Division
• Product ID: 1751 B/A
• MIL/OEM/Export Codes: Meets ASTM D-1002, ASTM D-1876; compliant with relevant MIL specifications

Alternative Names & Descriptions

• 3M Scotch-Weld Epoxy 1751B/A
• 3M Structural Epoxy 1751 B/A
• 3M Aluminum-Filled Epoxy 1751
• Epoxy Adhesive 1751 Two-Part Kit
• 3M 1751 B/A Metal Bonding Epoxy