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Description for 3M Scotch-Weld Epoxy Adhesive 2216 B/A Gray
It is a flexible, two-part, room temperature curing epoxy with high peel and shear strength, Resistant to extreme shock, vibration, and flexing.Brand Scotch-weld Chemical Resistance Air, Chemical Resistance: Fluid Resistance: Tap water, Anti-icing Fluid, 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 , Copper, Glass, Metal, Plastic, Rubber, Cold rolled Steel, Wood, Epoxy, Brass, Galvanized Steel, Stainless Steel, ABS Alloy, Styrene Butadiene Rubber, Galvanized Steel, Etched Aluminum , Steel Industry Aerospace, Aircraft, Transportation Manufacturer 3M Chemistry Modified Epoxy Application Method Trowel, Spatula Cure Method Room Temperature cure, 2-Part cure, Heat Cure Temperature (°C) 24, 66, 93, 20 to 25 Room Temperature Cure Time (min) 10,080, 120, 30 Viscosity (cPs) 80,000 Color Gray Aging Resistance Aging resistance Arc Resistance (sec) Arc Other Resistance Resistance to flexing Volume Resistivity (O) 1.9e12 (ohms/cm) Density (g/cm³) 11.1 - 11.6 (weight (lbs/gal)), 10.5 to 11 (weight (lbs/gal)) Key Specifications DOD (U.S. Department of Defense): DOD-A-82720 -
Technical Data for 3M Scotch-Weld Epoxy Adhesive 2216 B/A Gray
Overview
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Chemical Resistance
- Chemical Resistance : Fluid Resistance : Water Resistance - Tap water
- Chemical Resistance - Air, 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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Chemistry
- Epoxy - Modified Epoxy
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Application Method
- Dispenser - Dispensing equipment
- Flow - Flow equipment
- Spatula/Trowel - Trowel, Spatula
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Cure Method
- Room Temperature / Air Dry - Room Temperature cure
- Heat
- 2-Part Cure
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Color
- Gray
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Key Specifications
- DOD (U.S. Department of Defense) : A-82720 - DOD-A-82720
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Brand
- Scotch-weld
Specifications
Cure Specs
Cure Temperature (°C) 24, 66, 93, 20 to 25 Room Temperature Cure Time (min) 10,080, 120, 30 Viscosity (cPs) 80,000 Test Method Fixture or Handling Strength Time (min) 480 to 720 Test Method Work / Pot Time (min) Long Test Method Mix Ratio 2:3 (by volume), 5:7 (by weight) Bond Strength
Structural/Load-Bearing Structural Peel Strength (piw) High, 25 Test Method Shear Strength (psi) High, 2,440, 2,740, 3,000, 3,000, 3,200, 400, 1,850, 1,700, 1,900, 1,800, 1,050, 850, 200, 220, 990, 940, 1,170, 1,100, 1,660, 610, 1,290, 2,950, 1,985, 1,505, 2,300, 500, 300, 3,120, 2,942, 2,075, 4,650, 4,930, 3,300, 2,500, 2,500, 3,300 Test Method Material Resistance
Aging Resistance Aging resistance Arc Resistance (sec) Arc Moisture/Humidity Resistance Moisture/humidity resistance Other Resistance Resistance to flexing Vibration Resistance/Shock Resistance Resistant to extreme shock, Resistant to extreme vibration Conductivity
Dissipation Factor 0.11200, 0.42200 Test Method Dielectric Strength (V/mil) 408 Dielectric Constant 5.51, 14.17 Test Method Thermal Conductivity (W/m°K) 0.39 Volume Resistivity (O) 1.9e12 (ohms/cm) Test Method Hardness
Shore D Hardness 50 to 65 Test Method Flexibility Flexible Modulus (psi) 398,000, 318,855, 282,315, 218,805, 49,580 Test Method Other Properties
Outgassing 0.77 (%TML), 0.04 (%CVCM), 0.23 (%Wtr) Test Method Coefficient of Thermal Expansion (CTE) 102e-6 (in./ in/°C), 134e-6 (in./ in/°C) Test Method Density (g/cm³) 11.1 - 11.6 (weight (lbs/gal)), 10.5 to 11 (weight (lbs/gal)) 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., 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 24 months from date of manufacture from 3M. Shelf Life Temperature (°F) 61 to 81, 60 to 80 Shelf Life Type From date of shipment, From date of manufacture Shelf Life (mon) 24, 24 -
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Best Practices for 3M Scotch-Weld Epoxy Adhesive 2216 B/A Gray
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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 Vender 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., 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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Comparable Materials for 3M Scotch-Weld Epoxy Adhesive 2216 B/A Gray
Spec Engine® Results
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Scotch-Weld Epoxy Adhesive 2216 B/A Tan NS(3M)It is a flexible, two-part, room temperature curing epoxy with high peel and shear strength, Resistant to extreme shock, vibration, and flexing.
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High-Peel-Strength Orange Package #04007(Hardman)A semi–rigid, two–component structural epoxy adhesive. It develops an excellent combination of shear strength and peel strength with only a room temperature cure. It has excellent shock resistance, vibration resistance and impact strength.
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Fixture or Handling Strength Time Test Methods
| Fixture or Handling Strength Time | Fixture-Handling Strength Test Method |
|---|---|
| 480 to 720 min | Time to Handling Strength |
Viscosity Test Methods
| Viscosity | Test Method |
|---|---|
| 80,000 cPs | Brookfield RVF #7 sp. @ 20 rpm |
Work / Pot Time Test Methods
| Work / Pot Time | Test Method |
|---|---|
| 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 | ||||||
| 2,440 psi | Overlap shear strength | 120 min | 64 to 68°C | Etched Aluminum | -253°C | ASTM D 1002, Cure: 2 hours @ 150 ± 5°F (66°C ± 2°C), 2 psi pressure |
| 2,740 psi | Overlap shear strength | 120 min | 64 to 68°C | Etched Aluminum | 160°C | ASTM D 1002, Cure: 2 hours @ 150 ± 5°F (66°C ± 2°C), 2 psi pressure |
| 3,000 psi | Overlap shear strength | 120 min | 64 to 68°C | Etched Aluminum | -58°C | ASTM D 1002, Cure: 2 hours @ 150 ± 5°F (66°C ± 2°C), 2 psi pressure |
| 3,000 psi | Overlap shear strength | 120 min | 64 to 68°C | Etched Aluminum | -47°C | ASTM D 1002, Cure: 2 hours @ 150 ± 5°F (66°C ± 2°C), 2 psi pressure |
| 3,200 psi | Overlap shear strength | 120 min | 64 to 68°C | Etched Aluminum | -4°C | ASTM D 1002, Cure: 2 hours @ 150 ± 5°F (66°C ± 2°C), 2 psi pressure |
| 400 psi | Overlap shear strength | 120 min | 64 to 68°C | Etched Aluminum | 28°C | ASTM D 1002, Cure: 2 hours @ 150 ± 5°F (66°C ± 2°C), 2 psi pressure |
| 1,850 psi | Overlap shear strength | Aluminum/Aluminum | 24°C | Overlap shear strengths were measured on 1" x 1/2" overlap specimens. These bonds were made individually using 1" by 4" pieces of substrate (Tested per ASTM D 1002). | ||
| 1,700 psi | Overlap shear strength | Cold Rolled Steel/Cold Rolled Steel | 24°C | Overlap shear strengths were measured on 1" x 1/2" overlap specimens. These bonds were made individually using 1" by 4" pieces of substrate (Tested per ASTM D 1002). | ||
| 1,900 psi | Overlap shear strength | Stainless Steel/Stainless Steel | 24°C | Overlap shear strengths were measured on 1" x 1/2" overlap specimens. These bonds were made individually using 1" by 4" pieces of substrate (Tested per ASTM D 1002). | ||
| 1,800 psi | Overlap shear strength | Galvanized Steel/Galvanized Steel | 24°C | Overlap shear strengths were measured on 1" x 1/2" overlap specimens. These bonds were made individually using 1" by 4" pieces of substrate (Tested per ASTM D 1002). | ||
| 1,050 psi | Overlap shear strength | Copper/Copper | 24°C | Overlap shear strengths were measured on 1" x 1/2" overlap specimens. These bonds were made individually using 1" by 4" pieces of substrate (Tested per ASTM D 1002). | ||
| 850 psi | Overlap shear strength | Brass/Brass | 24°C | Overlap shear strengths were measured on 1" x 1/2" overlap specimens. These bonds were made individually using 1" by 4" pieces of substrate (Tested per ASTM D 1002). | ||
| 200 psi | Overlap shear strength | Styrene Butadiene Rubber/Steel | 24°C | Substrate failed during the test, Overlap shear strengths were measured on 1" x 1/2" overlap specimens. These bonds were made individually using 1" by 4" pieces of substrate (Tested per ASTM D 1002). | ||
| 220 psi | Overlap shear strength | Neoprene Rubber/Steel | 24°C | Substrate failed during the test, Overlap shear strengths were measured on 1" x 1/2" overlap specimens. These bonds were made individually using 1" by 4" pieces of substrate (Tested per ASTM D 1002). | ||
| 990 psi | Overlap shear strength | ABS/ABS Plastic | 24°C | Substrate failed during the test, Overlap shear strengths were measured on 1" x 1/2" overlap specimens. These bonds were made individually using 1" by 4" pieces of substrate (Tested per ASTM D 1002). | ||
| 940 psi | Overlap shear strength | PVC/PVC, Rigid | 24°C | Substrate failed during the test, Overlap shear strengths were measured on 1" x 1/2" overlap specimens. These bonds were made individually using 1" by 4" pieces of substrate (Tested per ASTM D 1002). | ||
| 1,170 psi | Overlap shear strength | Polycarbonate/Polycarbonate | 24°C | Substrate failed during the test, Overlap shear strengths were measured on 1" x 1/2" overlap specimens. These bonds were made individually using 1" by 4" pieces of substrate (Tested per ASTM D 1002). | ||
| 1,100 psi | Overlap shear strength | Acrylic/Acrylic | 24°C | Substrate failed during the test, Overlap shear strengths were measured on 1" x 1/2" overlap specimens. These bonds were made individually using 1" by 4" pieces of substrate (Tested per ASTM D 1002). | ||
| 1,660 psi | Overlap shear strength | Fiber Reinforced Polyester/Reinforced Polyester | 24°C | Substrate failed during the test, Overlap shear strengths were measured on 1" x 1/2" overlap specimens. These bonds were made individually using 1" by 4" pieces of substrate (Tested per ASTM D 1002). | ||
| 610 psi | Overlap shear strength | Polyphenylene Oxide/PPO | 24°C | Overlap shear strengths were measured on 1" x 1/2" overlap specimens. These bonds were made individually using 1" by 4" pieces of substrate (Tested per ASTM D 1002). | ||
| 1,290 psi | Overlap shear strength | PC/ABS Alloy / PC/ABS Alloy | 24°C | Overlap shear strengths were measured on 1" x 1/2" overlap specimens. These bonds were made individually using 1" by 4" pieces of substrate (Tested per ASTM D 1002). | ||
| 2,950 psi | Overlap shear strength | 20,160 min | ||||
| 1,985 psi | Overlap shear strength | 43,200 min | Etched Aluminum | |||
| 1,505 psi | Overlap shear strength | 129,600 min | Etched Aluminum | |||
| 2,300 psi | Overlap shear strength | 20,160 min | Etched Aluminum | |||
| 500 psi | Overlap shear strength | 43,200 min | Etched Aluminum | |||
| 300 psi | Overlap shear strength | 86,400 min | Etched Aluminum | |||
| 3,120 psi | Overlap shear strength | 20,160 min | Etched Aluminum | |||
| 2,942 psi | Overlap shear strength | 43,200 min | Etched Aluminum | |||
| 2,075 psi | 129,600 min | Etched Aluminum | ||||
| 4,650 psi | Overlap shear strength | 50,400 min | Etched Aluminum | |||
| 4,930 psi | Overlap shear strength | 57,600 min | Etched Aluminum | |||
| 3,300 psi | Overlap shear strength | 10,080 min | Etched Aluminum | |||
| 2,500 psi | Overlap shear strength | 43,200 min | Etched Aluminum | |||
| 2,500 psi | Overlap shear strength | 43,200 min | Etched Aluminum | |||
| 3,300 psi | Overlap shear strength | 10,080 min | Etched Aluminum |
Dielectric Constant Test Methods
| Dielectric Constant | Temperature | Test Method |
|---|---|---|
| 5.51 | 23°C | @ 73°F (23°C), Measured @ 1.00 KHz |
| 14.17 | 60°C | @140°F (60°C), Measured @ 1.00 KHz |
Dissipation Factor Test Methods
| Dissipation Factor | Temperature | Test Method |
|---|---|---|
| 0.11200 | 23°C | Dissipation Factor, Measured @ 1.00 KHz |
| 0.42200 | 60°C | Dissipation Factor, Measured @ 1.00 KHz |
Volume Resistivity Test Methods
| Volume Resistivity | Temp (°C) | Test Method |
|---|---|---|
| 1.9e12 (ohms/cm) | 23°C | 73°F (23°C) @ 500 volts DC |
Shore D Hardness Test Methods
| Shore D Hardness | Shore Hardness Test Method |
|---|---|
| 50 to 65 | ASTM D-2240 |
Modulus Test Methods
| Modulus | Temperature | Test Method |
|---|---|---|
| 398,000 psi | -100°C | ASTM D 1002, Cure: 2 hours @ 150 ± 5°F (66°C ± 2°C), 2 psi pressure, Shear Modulus |
| 318,855 psi | -60°C | ASTM D 1002, Cure: 2 hours @ 150 ± 5°F (66°C ± 2°C), 2 psi pressure, Shear Modulus |
| 282,315 psi | -40°C | ASTM D 1002, Cure: 2 hours @ 150 ± 5°F (66°C ± 2°C), 2 psi pressure, Shear Modulus |
| 218,805 psi | -36°C | ASTM D 1002, Cure: 2 hours @ 150 ± 5°F (66°C ± 2°C), 2 psi pressure, Shear Modulus |
| 49,580 psi | 24°C | ASTM D 1002, Cure: 2 hours @ 150 ± 5°F (66°C ± 2°C), 2 psi pressure, Shear Modulus |
Coefficient of Thermal Expansion (CTE) Test Methods
| Coefficient of Thermal Expansion (CTE) | CTE Temperature (°C) |
|---|---|
| 102e-6 (in./ in/°C) | 0 to 40°C |
| 134e-6 (in./ in/°C) | 40 to 80°C |
Outgassing Test Methods
| Outgassing | Temperature (°C) |
|---|---|
| 0.77 (%TML) | 25°C |
| 0.04 (%CVCM) | 25°C |
| 0.23 (%Wtr) | 25°C |
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