Scotch-Weld SCOTCH-WELD EC 2216 B/A GREY (33-Ltr-Kit)

Additional Product Information

Overview

This is a flexible, two-part, room-temperature curing epoxy adhesive with high peel and shear strength, designed for structural bonding in aviation and MRO environments. Teams rely on it for its durability under extreme temperatures, vibration, and shock, ensuring reliable repairs and assembly in critical aerospace applications.

Key Technical Specs for 3M Scotch-Weld Epoxy Adhesive EC-2216 B/A

• Type: Two-part, flexible epoxy adhesive
• Size/Volume: Available in gallon, pint, and cartridge formats
• Color: Gray (base/accelerator) or Translucent (base/accelerator)
• Viscosity/Consistency: 40,000 150,000 cps (Brookfield, depending on formulation)
• Cure/Working Time: 90 120 minutes at 75 F (24 C); handling strength in 8 16 hours
• Tensile/Peel Strength: Overlap shear up to 5,150 psi; T-peel 25 pli @ 75 F (24 C)
• Shore Hardness: 35 65 Shore D, depending on formulation
• Service Temperature: -423 F (-253 C) to 300 F (149 C)
• Typical Uses: Metals, plastics, rubbers, composites, and masonry bonding in aerospace, industrial, and MRO repair
• Shelf Life: 2 years from shipment when stored at 60 80 F (16 27 C)

Approvals & Specifications

• Meets military specification DOD-A-82720
• Tested and certified for aircraft and aerospace applications
• NASA outgassing compliant (TML: 0.77%, CVCM: 0.04%)

Typical Aircraft MRO / AOG Applications

• Structural bonding of aluminum and composite airframe components
• Repair of interior and exterior panels
• Adhesion of rubbers and plastics in maintenance tasks
• Sealing and bonding of cryogenic or low-temperature assemblies
• Critical fastener and bracket attachment in aircraft systems

Compatibility & Safety Notes

• Compatible with steel, aluminum, copper, brass, ABS, PVC, polycarbonate, acrylics, reinforced polyester, rubber substrates
• Use PPE including gloves and safety glasses when handling uncured adhesive
• Ensure surfaces are free from oils, dust, mold release agents, or oxide films
• Excess uncured adhesive can be cleaned with ketone-type solvents

Packaging & Procurement

• Available in gallons, pints, and pre-measured cartridges
• Easy two-part mixing; base and accelerator have contrasting colors for accuracy
• Store at 60 80 F (16 27 C) for maximum shelf life
• Adaptable for hand, spatula, trowel, or automated dispensing systems

Why 3M Scotch-Weld Epoxy Adhesive EC-2216 B/A is Chosen for AOG / MRO

• Fast, reliable curing at room temperature or with optional heat
• High versatility across multiple substrates and materials
• Durable performance under extreme environmental conditions
• Portable and easy to use for field repairs and in-line production

Practical Suggestions for Your Team (AOG Mindset)

• Stock both gray and translucent formulations for different visibility needs
• Train maintenance staff on correct surface preparation techniques for maximum bond strength
• Apply adhesive within working time window (90 120 min) for best results
• Keep parts immobilized until handling strength is reached to avoid misalignment

Manufacture / Aviation Spec Codes

• Manufacturer: 3M
• Product ID: EC-2216 B/A
• MIL/OEM Codes: DOD-A-82720, NASA 1124 Revision 4

Alternative Names & Descriptions

• 3M Scotch-Weld EC-2216 Two-Part Epoxy
• Scotch-Weld EC-2216 Gray/Translucent Adhesive
• EC-2216 Structural Epoxy Adhesive
• 3M EC-2216 B/A Aerospace Epoxy
• Scotch-Weld B/A Flexible Epoxy