3M 2216 B/A

3M 2216 B/A Datasheet
  • Description for 3M 2216 B/A

    Long worklife rigid epoxy • 16-20 hrs. handling strength • Bond plastic, metal, and other dissimilar materials, translucent version

    *See Terms of Use Below

    Application Type Bond
    1 Part or 2 Part 2 Part
    Material Form Liquid
    Substrate Aluminum, Epoxy, Glass, Metal, Plastic, Rubber, Cold rolled Steel, Wood, Steel
    Industry Aerospace, Aircraft, Transportation
    Manufacturer 3M
    Chemistry Epoxy, Epoxy: Modified Epoxy, Modified Amine
    Cure Method Air dry, Base/Accelerator
    Cure Temperature (°C) 24, 66, 93, 20 to 25
    Cure Time (min) 43,200, 240, 60
    Viscosity (cPs) 10,000
    Color Translucent
    Aging Resistance Aging resistance
    Arc Resistance (sec) Arc
    Chemical Resistance Anti-icing Fluid, Good, Hydraulic oil, Hydrocarbon fluid, JP-4 fuel, Salt spray, Tap water
    High Temperature Resistance (°C) 82
    Low Temperature Resistance (°C) -55
    Key Specifications DOD (U.S. Department of Defense): Meets DOD-A-82720
  • Technical Data for 3M 2216 B/A

    Overview
    • Application Type
    • 1 Part or 2 Part
      • 1 Part or 2 Part - 2 Part
      • Part A Name - Base
      • Part B Name - Accelerator
    • Material Form
      • Liquid
    • Substrate
    • Industry
    • Chemistry
      • Epoxy
      • Epoxy: Modified Epoxy
      • Other - Modified Amine
    • Cure Method
      • Room Temperature / Air Dry - Air dry
      • 2-Part Cure - Base/Accelerator
    • Color
      • Translucent
    • 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
    Aging Resistance Aging resistance
    Arc Resistance (sec) Arc
    Chemical Resistance Anti-icing Fluid, Good, Hydraulic oil, Hydrocarbon fluid, JP-4 fuel, Salt spray, Tap water
    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
  • Best Practices for 3M 2216 B/A

    *See Terms of Use Below

    1. 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

    2. 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.

    3. 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.

    4. 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.

  • Comparable Materials for 3M 2216 B/A

    *See Terms of Use Below

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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
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
Peel Strength Test Methods
Peel Strength Type Test Temperature Test Method
High
25 piw T-peel strength 24°C ASTM D 1876
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
35 to 50 ASTM D-2240
Coefficient of Thermal Expansion (CTE) Test Methods
Coefficient of Thermal Expansion (CTE) CTE Temperature (°C)
81e-6 (in/in/°C) -50 to 0°C
207e-6 (in/in/°C) 60 to 150°C