Application Type Bond 1 Part or 2 Part 1 Part Material Form Paste Substrate Etched Aluminum, Steel, Epoxy, Solvent Wiped cold rolled steel Manufacturer 3M Chemistry Epoxy, Epoxy: Modified Epoxy Cure Method Heat Cure Temperature (°C) 176 to 178 Cure Time (min) 59 to 61 Color Gray Creep Resistance Creep resistance Chemical Resistance Hydraulic Oil, Salt spray, salt water, White Gas, Chemical Resistance High Temperature Resistance (°C) 177 Low Temperature Resistance (°C) -55 Density (g/cm³) 12 (weight (lbs/gal))
Technical Data for 3M 2086
- Adhesive - Bond
1 Part or 2 Part
- 1 Part or 2 Part - 1 Part
Cure Temperature (°C) 176 to 178 Cure Time (min) 59 to 61
Structural/Load-Bearing Structural General Bond Strength (psi) High Peel Strength (piw) High, 50 Test Method Shear Strength (psi) 5,500, 5,500, 5,300, 4,300, 3,500, 3,000, 5,000, 5,000, 2,200, 500, 3,340, 2,700, 2,360, 480, 130 Test Method
Creep Resistance Creep resistance Chemical Resistance Hydraulic Oil, Salt spray, salt water, White Gas, Chemical Resistance Environmental Resistance 100% relative humidity, Environmental resistance High Temperature Resistance (°C) 177 Low Temperature Resistance (°C) -55 Moisture/Humidity Resistance Moisture/humidity resistance
Dissipation Factor 0.01600, 0.22800 Test Method Filler Filled Dielectric Strength (V/mil) 123 Test Method Dielectric Constant 10.80, 11.40 Test Method Volume Resistivity (O) 3.6e14 (ohms/cm) Test Method
Coefficient of Thermal Expansion (CTE) 47e-6 (in./ in/°C) Test Method % Solids (%) 100 Density (g/cm³) 12 (weight (lbs/gal))
Shelf Life Details Refrigerated storage at 40°F (4°C) or below is suggested for optimum storage life. If 3M™ Scotch-Weld™ Structural Adhesive EC-2086 is refrigerated, it should be permitted to thoroughly warm to room temperature before opening in order to prevent moisture condensation of the adhesive surface. Rotate stock on a “first in – first out” basis. Shelf Life Temperature (°F) <40
Best Practices for 3M 2086
EC-2086 can be applied by a spatula, knife coat, notched trowel, or by extruding into place. Standard equipment is available which allows pumping directly from five-gallon pails.
The only pressure needed during the cure of EC-2086 is that required to keep parts in alignment and to overcome distortion and thermal expansion in the adherends.
The cure temperature may be varied from 330°F to 500°F (165°C to 260°C), depending on the materials being bonded, equipment available and bond properties desired. EC-2086 will wet the surface to which it has been applied. Heating at temperatures above 325°F (163°C) will chemically convert the adhesive into a high strength solvent-resistant bond.
Cure time depends on the cure temperatures used, methods of heat application, production limitations and bond properties required. Since no two bonding operations are exactly alike, it is suggested that a few simple experiments be conducted, varying both temperature and cure time to determine optimum conditions for the particular application. Figure 1 is a guide from which an approximate cure cycle can be taken for various cure times or temperatures.
Excess adhesive and equipment may be cleaned up, prior to curing, with Ketone type solvents.*
*Note: When using solvents, extinguish all ignition sources and follow the manufacturer’s precautions and directions for use.
Comparable Materials for 3M 2086
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Peel Strength Test Methods
|Peel Strength||Type||Cure Time||Cure Temperature||Substrate||Test Temperature||Test Method|
|50 piw||T-peel strength||1.00 min||232°C||Wiped Steel||24°C||Cure Cycle: 1 minute @ 450°F (232°C), 50 psi.|
Shear Strength Test Methods
|Shear Strength||Type||Cure Time||Cure Temperature||Substrate||Test Temperature||Test Method|
|5,500 psi||Overlap shear strength||40 to 60 min||24°C||177°C|
|5,500 psi||Overlap shear strength||20 to 30 min||24°C||191°C|
|5,300 psi||Overlap shear strength||15 to 20 min||24°C||204°C|
|4,300 psi||Overlap shear strength||10 to 15 min||24°C||218°C|
|3,500 psi||Overlap shear strength||5.00 to 7 min||24°C||232°C|
|3,000 psi||Overlap shear strength||60 min||177°C||Etched Aluminum||-55°C||Cure Cycle: 1 hour @ 350°F (177°C), 25 psi.|
|5,000 psi||Overlap shear strength||60 min||177°C||Etched Aluminum||24°C||Cure Cycle: 1 hour @ 350°F (177°C), 25 psi.|
|5,000 psi||Overlap shear strength||60 min||177°C||Etched Aluminum||82°C||Cure Cycle: 1 hour @ 350°F (177°C), 25 psi.|
|2,200 psi||Overlap shear strength||60 min||177°C||Etched Aluminum||121°C||Cure Cycle: 1 hour @ 350°F (177°C), 25 psi.|
|500 psi||Overlap shear strength||60 min||177°C||Etched Aluminum||177°C||Cure Cycle: 1 hour @ 350°F (177°C), 25 psi.|
|3,340 psi||Overlap shear strength||1.00 min||232°C||Solvent Wiped cold rolled steel||-40°C||Cure Cycle: 1 minute @ 450°F (232°C), 50 psi.|
|2,700 psi||Overlap shear strength||1.00 min||232°C||Solvent Wiped cold rolled steel||24°C||Cure Cycle: 1 minute @ 450°F (232°C), 50 psi.|
|2,360 psi||Overlap shear strength||1.00 min||232°C||Solvent Wiped cold rolled steel||82°C||Cure Cycle: 1 minute @ 450°F (232°C), 50 psi.|
|480 psi||Overlap shear strength||1.00 min||232°C||Solvent Wiped cold rolled steel||121°C||Cure Cycle: 1 minute @ 450°F (232°C), 50 psi.|
|130 psi||Overlap shear strength||1.00 min||232°C||Solvent Wiped cold rolled steel||177°C||Cure Cycle: 1 minute @ 450°F (232°C), 50 psi.|
Dielectric Constant Test Methods
Dielectric Strength Test Methods
Dissipation Factor Test Methods
Volume Resistivity Test Methods
|Volume Resistivity||Temp (°C)||Test Method|
|3.6e14 (ohms/cm)||23°C||500 Volts DC|
Coefficient of Thermal Expansion (CTE) Test Methods
|Coefficient of Thermal Expansion (CTE)||CTE Temperature (°C)|
|47e-6 (in./ in/°C)||-18 to 27°C|