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Description for 3M Thermally Conductive Epoxy Adhesive TC-2707
It is a thermally conductive 2-part epoxy using aluminum metal filler for good thermal conductivity with high adhesion, Low viscosity for potting applications.Application Type Bond, Potting applications 1 Part or 2 Part 2 Part Material Form Liquid Industry HEV battery, LED Assembly, heat sinks, PCB , EV battery Manufacturer 3M Chemistry Epoxy Cure Method 2-Part cure Cure Temperature (°C) 23, 50, 70, 90, 120 Gap Fill (in) Good Cure Time (min) 1,440, 270, 90, 30, 10 Viscosity (cPs) 60,000, Low Color Gray High Temperature Resistance (°C) Thermal Resistance
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Viscosity Test Methods
| Viscosity | Test Method |
|---|---|
| 60,000 cPs | 40mm, 2°cone at 10 1/sec., mixed |
| Low |
Work / Pot Time Test Methods
| Work / Pot Time | Test Method | Temperature |
|---|---|---|
| 60 min | Worklife | 23°C |
Peel Strength Test Methods
| Peel Strength | Type | Cure Time | Cure Temperature | Test Method |
|---|---|---|---|---|
| >7 piw | T-Peel Strength | 1,440 min | 23°C | ASTM D-1876 |
| >7 piw | T-Peel Strength | 30 min | 90°C | ASTM D-1876 |
| >7 piw | T-Peel Strength | 10 min | 120°C | ASTM D-1876 |
Shear Strength Test Methods
| Shear Strength | Type | Cure Time | Cure Temperature | Test Method |
|---|---|---|---|---|
| >2,701 psi | Overlap shear Strength | 1,440 min | 23°C | ASTM D-1002 |
| >2,701 psi | Overlap shear Strength | 30 min | 90°C | ASTM D-1002 |
| >2,701 psi | Overlap shear Strength | 10 min | 120°C | ASTM D-1002 |
Filler Test Methods
| Filler | Concentration Test Method |
|---|---|
| Aluminum metal | 50% by weight |
Shore D Hardness Test Methods
| Shore D Hardness | Shore Hardness Test Method |
|---|---|
| 80 | ASTM D2240 |
Coefficient of Thermal Expansion (CTE) Test Methods
| Coefficient of Thermal Expansion (CTE) | CTE Test Method |
|---|---|
| 77e-6 (/°C) | Below Tg |
| 160e-6 (/°C) | Above Tg |
Glass Transition Temp (Tg) Test Methods
| Glass Transition Temp (Tg) | Glass Transition Temperature (Tg) Test Method |
|---|---|
| 60°C | (ASTM E-1356), 30 minutes |
| 66°C | (ASTM E-1356), 10 minutes |
| 66°C | (ASTM E-1356), 24 hours |
Outgassing Test Methods
| Outgassing | Test Method |
|---|---|
| low | |
| <1000 ug/g (GC/MS, 85 C/3 hours) | ASTM 5116 |
| <5 ug/g (GC/MS, 85C/3 hours | Siloxane Outgassing, ASTM 5516 |
| <30 ug/g (hexane extraction) | Extractable Chloride, (hexane extraction), ASTM D7994 |
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