Epoxy specifications
| | Low-temperature conductive epoxy | Stycast® epoxy |
| Max temperature | 573 K | 403 K |
| Glass transition temperature | ≥353 K | 359 K |
| Thermal conductivity |
| 1 K | — | 0.0065 W/(m·K) |
| 4.2 K | — | 0.064 W/(m·K) |
| 300 K | 2.5 W/(m·K) | 1.3 W/(m·K) |
| Thermal expansion (1/K) | >360 K: 150 × 10-6
<360 K: 43 × 10-6 | 29 × 10-6 |
| Volume resistivity | At 298 K:
0.0001 to 0.0004 (Ω·cm) | 298 K: 5 × 1014 (Ω·m)
394 K: 1 × 1010 (Ω·m) |
| Shelf life (298 K max) | 12 months from date of manufacture at room temperature | 12 months from date of manufacture at room temperature |
| Pot life* | 4 days, ~1 day working time | 45 min, ~20 min working time |
| Cure schedule | 323 K: 12 h
353 K: 90 min
393 K: 15 min
423 K: 5 min
448 K: 45 s | 298 K: 16 to 24 h
318 K: 4 to 6 h
338 K: 1 to 2 h |
| Dielectric strength | NA (conductive) | 14.4 kV/mm |
| Dielectric constant | NA (conductive) | (1 mHz): 5.01 |
| Vapor pressure | — | <13.3 Pa (0.1 Torr) at 298 K |
| Outgassing | — | TML: 0.25% CVCM: 0.1% |
*Pot life is defined as the amount of time it takes for an initial mixed viscosity to double or quadruple for lower viscosity products (<1000 cP). Timing starts when the product is mixed and is measured at room temperature.
Working time is the amount of time an epoxy remains low enough in viscosity that it can still be easily applied to a part or substrate in a particular application. For that reason, working life can vary from application to application, and even by the epoxy application method, so there is no uniform method for quantifying this property. This value should be viewed as an estimation.