| About |
|---|
| Epic S7344 is a two component polybutadiene based polyurethane system designed for electronic potting applications. S7344 features low mixed viscosity, good high temperature stability, and a convenient 1:1 mix ratio by volume. The low hardness of S7344 offers protection for delicate electronic devices subject to thermal cycling and thermal shock.&& |
| Product Description | |
|---|---|
| Generic | PUR |
| Material Status | Commercial: Active |
| Features | Low Viscosity,Good thermal shock resistance,Low Hardness,Heat Stabilized |
| Availabilitys | North America |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 0.968 to 1.01 | g/cm³ | ASTM D792 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Shore hardness | |||
| Shore A, 25 ℃ | 38 to 43 | ASTM D2240 |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Volume resistivity | 2.6E+12 to 3.4E+12 | ohms·cm | ASTM D257 |
| Dielectric strength | |||
| 1.52 mm | 19 to 20 | kV/mm | ASTM D149 |
| Dielectric constant | |||
| 100 kHz | 3.25 to 3.65 | ASTM D2520 | |
| Dissipation factor | |||
| 100 kHz | 0.033 to 0.034 | ASTM D150 |
| Thermosetting mixed viscosity | Nominal value | Unit | Test method |
|---|---|---|---|
| 25℃ | < 1000 | cP | ASTM D2393 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Glass transition temperature | -43.0 to -40.0 | ℃ | ASTM E1356 |
| Linear coefficient of thermal expansion | |||
| MD | 3.5E-4 to 3.7E-4 | 1/℃ | ASTM D696 |
| Thermosetting components | |||
| Component A | 按重量计算的混合比: 100 按容量计算的混合比: 1.0 | ||
| Component B | 按重量计算的混合比: 110 按容量计算的混合比: 1.0 | ||
| storage stability | |||
| 25 ℃ | 15 to 25 | min |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. 100 Gram Mass |
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