3M SCOTCH-WELD-EC-3532-B/A (4-oz-Kit)

Additional Product Information

Overview

3M Scotch-Weld EC-3532-B/A is a two-part urethane adhesive designed for structural bonding of metals, composites, and plastics. Trusted by aircraft engineers and MRO teams, it provides high strength, flexibility, and impact resistance in demanding operational environments, making it suitable for urgent AOG repairs.

Key Technical Specifications

• Mix ratio: 100:109 by weight; 100:100 by volume
• Work life: Approximately 5-15 minutes at 24°C
• Full cure: ~24 hours at 24°C
• Shear strength: ~2,200 psi at 24°C
• Temperature behavior: Maintains flexibility at low temperatures

Approvals & Specifications

• Surface preparation: Abrasion and solvent cleaning recommended
• Primer: EC-3901 advised for metal substrates
• Bondline control: ~0.005"

Typical Aircraft MRO / AOG Applications

• Structural and secondary structure bonding
• Dissimilar material bonding (metal to composite or plastic)
• Impact-resistant fillets and repairs

Compatibility & Safety Notes

• Bonds primed metals, plastics, and composites
• Use PPE; consult SDS for sensitization and toxicity guidance

Packaging & Procurement

• 4-oz (118 mL) two-part kit with batch traceability

Why Chosen for AOG / MRO

• High structural strength with non-sag application
• Compact kit minimizes waste and supports rapid response

Practical Suggestions for Maintenance Teams

• Keep spare kits in AOG lockers
• Control mix ratio and bondline thickness carefully
• Document batch and expiry on job cards

Manufacture & Aviation Spec Codes

• Manufacturer: 3M Aerospace
• Product code: EC-3532 B/A
• ECCN: EAR99

Alternative Names & Common Descriptions

• 3M EC-3532
• Scotch-Weld 3532 B/A
• Urethane Adhesive EC-3532