

-
Description for 3M Scotch-Weld Epoxy Adhesive 2216 B/A Tan NS
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, Glass, Metal, Plastic, Polycarbonate, Rubber, Cold rolled Steel, Wood, Epoxy, ABS Alloy, Steel Industry Aerospace, Transportation, Aircraft Manufacturer 3M Chemistry Epoxy Application Method Spatula, Trowel Cure Method 2-Part Cure, Room temperature cure Cure Temperature (°C) 24, 66, 93, 20 to 25 Room temperature Cure Time (min) 10,080, 120, 30 Viscosity (cPs) Non-sag, 350,000 Color Tan Arc Resistance (sec) Arc Aging Resistance Aging resistance High Temperature Resistance (°C) 82 Low Temperature Resistance (°C) -55 Other Resistance Resistant to flexing Volume Resistivity (O) 3.0e12 (ohms/cm) Key Specifications DOD (U.S. Department of Defense): DOD-A-82720 -
Technical Data for 3M Scotch-Weld Epoxy Adhesive 2216 B/A Tan NS
Overview
-
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
-
Application Type
- Adhesive - Bond
-
1 Part or 2 Part
- 2-Part
-
Material Form
- Liquid
-
Industry
- Transportation
- Aerospace
- Aircraft
- Industrial - Cryogenic
- Construction - Masonry
-
Chemistry
-
Application Method
- Dispenser - Dispensing equipment
- Flow - Flow equipment
- Spatula/Trowel - Trowel, Spatula
-
Cure Method
- Room Temperature / Air Dry - Room temperature cure
- 2-Part Cure
-
Color
- Brown - Tan
-
Key Specifications
- DOD (U.S. Department of Defense) : A-82720 - DOD-A-82720
-
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) Non-sag, 350,000 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, 2,000, 2,500, 400, 2,350, 3,100, 1,140, 1,730, 1,110, 1,650, 610, 1,290 Test Method Material Resistance
Arc Resistance (sec) Arc Aging Resistance Aging resistance High Temperature Resistance (°C) 82 Low Temperature Resistance (°C) -55 Moisture/Humidity Resistance Moisture/humidity resistance Other Resistance Resistant to flexing Vibration Resistance/Shock Resistance Resistant to extreme vibration, Resistant to extreme shock 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 (ohms/cm) Test Method Hardness
Shore D Hardness 65 to 70 Test Method Flexibility Flexible 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 -
-
Best Practices for 3M Scotch-Weld Epoxy Adhesive 2216 B/A Tan NS
-
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. The following cleaning methods are suggested for common surfaces
Steel or Aluminum (Mechanical Abrasion) 1)Wipe free of dust with oil-free solvent such as acetone or alcohol solvents 2) Sandblast or abrade using clean fine grit abrasives (180 grit or finer). 3) Wipe again with solvents to remove loose particles. 4)If a primer is used, it should be applied within 4 hours after surface preparation .Aluminum (Chemical Etch): Aluminum alloys may be chemically cleaned and etched as per ASTM D 2651. This procedure states to: 1) Alkaline Degrease – Oakite 164 solution (9-11 oz/gal of water) at 190°F ± 10°F (88°C ± 5°C) for 10-20 minutes. Rinse immediately in large quantities of cold running water 2) To prepare 1 liter of this solution, dissolve sodium dichromate in 700 ml of distilled water. Add sulfuric acid and mix well. Add additional distilled water to fill to 1 liter. Heat mixed solution to 66 to 71°C (150 to 160°F). Dissolve 1.5 grams of 2024 bare aluminum chips per liter of mixed solution. Gentle agitation will help aluminum dissolve in about 24 hours To etch aluminum panels, place them in FPL etch solution heated to 66 to 71°C (150 to 160°F). Panels should soak for 12 to 15 minutes 3)Rinse: Rinse panels in clear running tap water 4)Dry: Air dry 15 minutes
force dry 10 minutes (minimum) at 140°F (60°C) maximum 5)If primer is to be used, it should be applied within 4 hours after surface preparation Plastics/Rubber
Wipe with isopropyl alcohol.
Abrade using fine grit abrasives (180 grit or finer)
Wipe with isopropyl alcohol.
Glass
Solvent wipe surface using acetone or MEK.
Apply a thin coating (0.0001 in. or less) of 3M™ Scotch-Weld™ Structural Adhesive Primer EC-3901 to the glass surfaces to be bonded and allow the primer to dry a minimum of 30 minutes @ 75°F (24°C) before bonding.
-
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.
-
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.
-
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.
-
-
Comparable Materials for 3M Scotch-Weld Epoxy Adhesive 2216 B/A Tan NS
Spec Engine® Results
Popular Articles
Electrically Conductive Adhesives
Read ArticleEpoxy Adhesives for Medical Devices
Read ArticleInfographic: ENSURING A STRONG BOND - 6 Basic Methods of Surface Preparation
Read ArticleTesting the effectiveness of surface treatments
Read ArticleSponsored Articles
Unique Advantages of Contact Adhesives
Read ArticleUsing LOCTITE® 454™ is a Valid Option for Engineers Working with a Wide Variety of Materials
Read ArticleSylgard 184 by DOW is the Top Choice for a Transparent, Silicone Encapsulant. Read Why:
Read ArticleCase Study: Creating reliable, corrosion-free bonds with LORD® 406 acrylic adhesive
Read ArticleFeatured Ads

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 |
---|---|
Non-sag | |
350,000 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 | ||||||
2,000 psi | Overlap shear strength | 120 min | 64 to 68°C | Etched Aluminum | -73°C | ASTM D 1002, Cure: 2 hours @ 150 ± 5°F (66°C ± 2°C), 2 psi pressure |
2,500 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 |
400 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 |
2,350 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 |
3,100 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). | ||
1,140 psi | Overlap shear strength | Styrene Butadiene Rubber/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). | ||
1,730 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). | ||
1,110 psi | Overlap shear strength | PVC/PVC, Rigid | 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). | ||
1,650 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). | ||
610 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). | ||
1,290 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). |
Dielectric Constant Test Methods
Dielectric Constant | Test Method |
---|---|
6.30 | 1 Khz |
Dissipation Factor Test Methods
Dissipation Factor | Test Method |
---|---|
0.11900 | 1 Khz |
Volume Resistivity Test Methods
Volume Resistivity | Temp (°C) | Test Method |
---|---|---|
3.0e12 (ohms/cm) | 23°C | 73°F (23°C) @ 500 volts DC |
Shore D Hardness Test Methods
Shore D Hardness | Shore Hardness Test Method |
---|---|
65 to 70 | ASTM D-2240 |

1 VIEW FREE
Don't Leave!
View 3M - Scotch-Weld Epoxy Adhesive 2216 B/A Tan NS now.