3M™ Scotch-Weld™ Epoxy Adhesive 2216
The 3M™ Scotch-Weld™ Epoxy Adhesive 2216 B/A is a flexible, two-part epoxy adhesive renowned for its high peel and shear strength, making it ideal for bonding a variety of substrates in demanding environments. Its ability to withstand extreme conditions, including cryogenic temperatures, makes it a preferred choice in industries such as aerospace, transportation, and construction.
Product Overview
3M™ Scotch-Weld™ Epoxy Adhesive 2216 B/A is designed for applications requiring strong, flexible bonds. It cures at room temperature and offers excellent performance under dynamic loads, vibrations, and thermal cycling. Its flexibility accommodates differential thermal expansion between dissimilar materials, ensuring durable bonds even under stress.
Key Features
Flexible and Durable: Maintains bond strength under vibration, flexing, and shock.
Cryogenic Performance: Performs well at temperatures as low as -423°F (-252°C).
Extended Work Life: Offers a 90-minute work time, allowing for precise assembly and adjustments.
Versatile Bonding: Adheres to metals, plastics, rubber, wood, and masonry.
Environmental Resistance: Resists moisture, chemicals, and environmental aging.
Meets Military Specifications: Complies with DOD-A-82720 standards.
Applications
Aerospace and Defense: Bonding components subjected to extreme temperatures and stress.
Transportation: Assembling parts in vehicles, including those exposed to vibrations and thermal variations.
Construction: Bonding dissimilar materials in structures requiring flexibility and strength.
Electronics: Potting and encapsulating components sensitive to thermal cycling.
General Industrial Use: Applications requiring durable bonds between various substrates.
Packaging Options
Duo-Pak Cartridges: Available in various sizes for use with 3M™ EPX™ Applicator Systems.
Bulk Containers: Offered in larger quantities for high-volume applications.
Color Variants:
- Gray: Standard version with balanced properties.
- Tan NS (Non-Sag): Ideal for vertical applications requiring gap filling.
- Translucent: Suitable for applications where appearance is critical.
Handling & Safety
Mix Ratio: 2:3 by volume (5:7 by weight).
Curing:
- Room Temperature: Achieves handling strength in 8–12 hours; full cure in 7 days.
- Heat Accelerated: Full cure in 30 minutes at 200°F (93°C).
Storage: Store in a cool, dry place; shelf life of 12 months from the date of manufacture.
Personal Protective Equipment (PPE):
- Wear safety goggles and gloves during handling.
- Ensure adequate ventilation in the working area.
Safety Precautions:
- Avoid contact with skin and eyes.
- In case of skin contact, wash thoroughly with soap and water.
- In case of eye contact, rinse immediately with plenty of water and seek medical advice.
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