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Description for 3M 2216 B/A
Long worklife rigid epoxy • 16-20 hrs. handling strength • Bond plastic, metal, and other dissimilar materials, translucent versionChemical Resistance Anti-icing Fluid, Chemical Resistance: Fluid Resistance: Tap water, Good, Hydraulic oil, Hydrocarbon fluid, JP-4 fuel, Salt spray Application Type Bond 1 Part or 2 Part 2-Part Material Form Liquid Substrate Aluminum, Glass, Metal, Plastic, Rubber, Cold rolled Steel, Wood, Epoxy, Steel Industry Aerospace, Transportation, Aircraft Manufacturer 3M Chemistry Epoxy, Modified Amine, Epoxy: Modified Epoxy Cure Method Base/Accelerator, Heat, Air dry Cure Temperature (°C) 24, 66, 93, 20 to 25 Cure Time (min) 43,200, 240, 60 Viscosity (cPs) 10,000 Color Translucent Arc Resistance (sec) Arc Aging Resistance Aging resistance High Temperature Resistance (°C) 82 Low Temperature Resistance (°C) -55 Volume Resistivity (O) 3.0e12 (ohm-cm) Key Specifications DOD (U.S. Department of Defense): Meets DOD-A-82720 -
Technical Data for 3M 2216 B/A
Overview
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Chemical Resistance
- Chemical Resistance : Fluid Resistance : Water Resistance - Tap water
- Chemical Resistance - Anti-icing Fluid, Good, Hydraulic oil, Hydrocarbon fluid, JP-4 fuel, Salt spray
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Application Type
- Adhesive - Bond
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1 Part or 2 Part
- 2-Part
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Material Form
- Liquid
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Industry
- Transportation
- Aerospace
- Aircraft
- Industrial - Cryogenic
- Construction - Masonry
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Cure Method
- Room Temperature / Air Dry - Air dry
- Heat
- 2-Part Cure - Base/Accelerator
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Color
- Translucent
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Key Specifications
- DOD (U.S. Department of Defense) : A-82720 - Meets DOD-A-82720
Specifications
Cure Specs
Cure Temperature (°C) 24, 66, 93, 20 to 25 Test Method Cure Time (min) 43,200, 240, 60 Test Method Viscosity (cPs) 10,000 Test Method Fixture or Handling Strength Time (min) 720 to 960 Work / Pot Time (min) 120, 120, Long Test Method Mix Ratio 1:1 (by volume), 1:1 (by weight) Bond Strength
Structural/Load-Bearing Structural Peel Strength (piw) High, 25 Test Method Shear Strength (psi) High, 3,000, 1,700, 140 Test Method Material Resistance
Arc Resistance (sec) Arc Aging Resistance Aging resistance Environmental Resistance Air Resistance High Temperature Resistance (°C) 82 Low Temperature Resistance (°C) -55 Moisture/Humidity Resistance Moisture/humidity resistance Conductivity
Dissipation Factor 0.11900 Test Method Dielectric Strength (V/mil) 408 Dielectric Constant 6.30 Test Method Thermal Conductivity (W/m°K) 0.20 Volume Resistivity (O) 3.0e12 (ohm-cm) Test Method Hardness
Shore D Hardness 35 to 50 Test Method Flexibility Rigid, Flexible Other Properties
Coefficient of Thermal Expansion (CTE) 81e-6 (in/in/°C), 207e-6 (in/in/°C) Test Method Business Information
Shelf Life Details Store products at 60-80°F (16-27°C) for maximum storage life.;When stored at the recommended temperatures in the original, unopened containers,the shelf life is two years from date of shipment from 3M. Shelf Life Temperature (°F) 61 to 81 Shelf Life Type From date of shipment Shelf Life (mon) 24 -
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Best Practices for 3M 2216 B/A
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Surface Preparation
For high strength structural bonds, paint, oxide films, oils, dust, mold release agents and all other surface contaminants must be completely removed. However, the amount of surface preparation directly depends on the required bond strength and the environmental aging resistance desired by user.
See technical data sheet for more information
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Application
Application to the substrates should be made within 90 minutes. Larger quantities and/or higher temperatures will reduce this working time.
Join the adhesive coated surfaces and allow to cure at 60°F (16°C) or above until firm. Heat, up to 200°F (93°C), will speed curing.
Keep parts from moving until handling strength is reached. Contact pressure is necessary. Maximum shear strength is obtained with a 3-5 mil bond line. Maximum peel strength is obtained with a 17-25 mil bond line.
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Mixing
These products consist of two parts. Mix thoroughly by weight or volume in the proportions specified on the product label and in the uncured properties section. Mix approximately 15 seconds after a uniform color is obtained.
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Clean-Up
Excess uncured adhesive can be cleaned up with ketone type solvents.*
*Note: When using solvents, extinguish all ignition sources, including pilot lights, and follow the manufacturer’s precautions and directions for use. Use solvents in accordance with local regulations.
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Cure Temperature Test Methods
Cure Temperature | Cure Time Test Method |
---|---|
24°C | |
66°C | |
93°C | |
20 to 25°C |
Cure Time Test Methods
Cure Time | Test Method |
---|---|
43,200 min | |
240 min | |
60 min |
Viscosity Test Methods
Viscosity | Test Method |
---|---|
10,000 cPs | Brookfield RVF #7 sp. @ 20 rpm |
Work / Pot Time Test Methods
Work / Pot Time | Test Method | Temperature |
---|---|---|
120 min | Base, 100 g Mass @ 75°F 24°(C) | 24°C |
120 min | Accelerator, 100 g Mass @ 75°F (24°C) | 24°C |
Long |
Peel Strength Test Methods
Peel Strength | Type | Test Temperature | Test Method |
---|---|---|---|
High | |||
25 piw | T-peel strength | 24°C | ASTM D 1876 |
Shear Strength Test Methods
Shear Strength | Type | Cure Time | Cure Temperature | Substrate | Test Temperature | Test Method |
---|---|---|---|---|---|---|
High | ||||||
3,000 psi | Overlap shear strength | 120 min | 64 to 68°C | Etched Aluminum | -53°C | ASTM D 1002, Cure: 2 hours @ 150 ± 5°F (66°C ± 2°C), 2 psi pressure |
1,700 psi | Overlap shear strength | 120 min | 64 to 68°C | Etched Aluminum | 24°C | ASTM D 1002, Cure: 2 hours @ 150 ± 5°F (66°C ± 2°C), 2 psi pressure |
140 psi | Overlap shear strength | 120 min | 64 to 68°C | Etched Aluminum | 82°C | ASTM D 1002, Cure: 2 hours @ 150 ± 5°F (66°C ± 2°C), 2 psi pressure |
Dielectric Constant Test Methods
Dielectric Constant | Temperature | Test Method |
---|---|---|
6.30 | 23°C | Dielectric Constant, 1 KHz |
Dissipation Factor Test Methods
Dissipation Factor | Temperature | Test Method |
---|---|---|
0.11900 | 23°C | Dissipation Factor, 1 KHz |
Volume Resistivity Test Methods
Volume Resistivity | Temp (°C) | Test Method |
---|---|---|
3.0e12 (ohm-cm) | 23°C | 500 volts DC |
Shore D Hardness Test Methods
Shore D Hardness | Shore Hardness Test Method |
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35 to 50 | ASTM D-2240 |
Coefficient of Thermal Expansion (CTE) Test Methods
Coefficient of Thermal Expansion (CTE) | CTE Temperature (°C) |
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81e-6 (in/in/°C) | -50 to 0°C |
207e-6 (in/in/°C) | 60 to 150°C |