Description
3M™ Scotch-Weld™ EC-2216 B/A is a two-part flexible epoxy adhesive for structural bonding in aerospace and industrial applications.
- Pack size: 41.5 ml dual cartridge (3M ID 7100269534)
- Also available as: 250 ml tube set
Applications
- Flexible bonding of metals, plastics, glass, rubber, and ceramics
- Structural bonding in aerospace and defense industries
- Cryogenic applications (down to -253 °C)
- Bonds exposed to dynamic loads, vibration or shock
Features
- High peel and shear strength
- Excellent impact and vibration resistance
- Color-coded components for reliable mixing control
- Room-temperature or accelerated thermal curing
- Resistant to water, fuels, hydraulic fluids, and de-icing agents
- Meets DOD-A-82720 / MIL-A-82720 standards
Technical Data
| Physical Properties | |
|---|---|
| Color (cured) | Gray |
| Transparency | Opaque |
| Mix ratio B:A (volume / weight) | 2:3 / 5:7 |
| Consistency | Paste-like |
| Working time (100 g, 24 °C) | 90-120 minutes |
| Handling strength | 8-12 hours |
| Full cure at 23 °C | 7 days |
| Mechanical Properties | |
| Lap shear strength (aluminum, 23 °C) | 22 MPa (3200 psi) |
| T-peel strength | 25 piw (~4.4 N/mm) |
| Shore hardness D | 50-65 |
| Thermal Properties | |
| Service temperature range | -55 °C to +80 °C (continuous) (tested from -253 °C to +177 °C) |
| Thermal conductivity | 0.114 – 0.228 BTU·ft/ft²·h·°F (≈ 0.2 – 0.4 W/m·K) |
| Electrical Properties | |
| Dielectric strength | 408-630 V/mil |
Instructions for Use
- Clean and degrease bonding surfaces; abrade if necessary
- Mix resin and hardener thoroughly until color is uniform
- Apply and use within 90 minutes
- Allow to cure at room temperature or with heat acceleration
- Recommended bond line thickness: 3-5 mil
- Clean uncured material with MEK or similar solvents
Recommended Accessories
- Mixing nozzle: 3M Scotch-Weld EPX Static
- Dispensing gun: 3M Scotch-Weld EPX III
- 3M™ Primer EC-1945 B/A (for metals)
Storage & Shelf Life
- Store unopened in dry conditions at +16 °C to +27 °C
- Shelf life: 24 months in original packaging
3M Scotch-Weld EC2216, EC 2216B/A, aerospace epoxy adhesive
Hazard Information (CLP)

Signal word: Danger (Part A) / Warning (Part B)
Hazard Statements (H-statements)
- H315: Causes skin irritation. (Part A and B)
- H318: Causes serious eye damage. (Part A)
- H319: Causes serious eye irritation. (Part B)
- H317: May cause an allergic skin reaction. (Part A and B)
- H336: May cause drowsiness or dizziness. (Part A)
- H410: Very toxic to aquatic life with long lasting effects. (Part A)
- H411: Toxic to aquatic life with long lasting effects. (Part B)
Precautionary Statements (P-statements)
Prevention:
- P261A: Avoid breathing vapours. (Part A)
- P273: Avoid release to the environment. (Part A and B)
- P280B: Wear protective gloves/eye protection/face protection. (Part A)
- P280E: Wear protective gloves. (Part B)
Response:
- P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. (Part A and B)
- P310: Immediately call a POISON CENTER or doctor. (Part A)
- P333 + P313: If skin irritation or rash occurs: Get medical advice/attention. (Part A and B)
- P391: Collect spillage. (Part B)
Additional Labeling (EUH-statements)
- No additional EUH-statements provided.
Storage and Disposal
- No specific information on storage and disposal provided.
Other Relevant Information
- H- and P-statements differ for packaging below 125 ml. (Both parts)
Hazardous materials. The forwarding charges may be raised, if shipping to: DE, AT, NL, GB, CH, CZ, IT, ES, FI, NO, BE, IE, RO, PL, FR, PT, LU, DK, LI, GR, SE, SK, BG, SI, CA, LT, EE, LV, HR, SA,
3M Deutschland GmbH, Carl-Schurz-Straße l, 41453 Neuss, Deutschland, 02131-14-2914 / 0, [email protected], www.3m.com/msds






Emilia –
Not too big, not too small, perfect. Very fast delivery, thank you. This solved my problem completely! A friend recommended it; I’m very happy with the purchase.
Lukas –
Well-made product. Exactly as in the pictures. Works great. Excellent packaging.
Natalie X. –
Packaging was slightly damaged, but the product is excellent. No unpleasant smell, which I really appreciate. Not too big, not too small, just perfect. Perfect for my needs; I couldn’t be happier.
Delphine –
Super fast delivery, thank you. Very satisfied, better than I expected. A friend recommended it to me and I’m thrilled with the purchase.
Jonas –
Product as described. Very satisfied with the purchase. Great value for money.
federico_it –
Fast shipping, great service. Exactly as described. Excellent quality and price.
jonathan_s –
Reliable and stable. Top seller. Great service, thank you. Punctual service.
Natalie Y. –
Very satisfied, better than I expected. Feels nice to use at home. Easy to use, no mess at all.
Johanna –
Pleasant to use at home.
emil_x –
Exactly what I needed.
Nicholas S. –
Worth every cent.
Dominik –
Very satisfactory. Perfect for what I needed.