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A silicone based fluid that is ideally suited for high oxidation applications or completely exposed systems. Duratherm S is virtually impervious to oxidation at temperatures under 204°C and offers superior protection from fluid degradation. Duratherm S is best suited for applications not prone to contamination or leaking.
| Temerature Ratings | |
|---|---|
| Maximum Bulk/Use Temp | 316°C |
| Maximum Film Temp | 366°C |
| Pour Point ASTM D445 | -66°C |
| Safety Data | |
|---|---|
| Flash Point ASTM D92 | 324°C |
| Fire Point ASTM D92 | 336°C |
| Auto Ignition ASTM E-659-78 | 437°C |
| Thermal Properties | |
|---|---|
| Thermal Expansion Coefficient | 0.099 %/°C |
| Thermal Conductivity | W/m·K |
| 38°C | 0.133 |
| 204°C | 0.109 |
| 260°C | 0.1 |
| 288°C | 0.097 |
| 316°C | 0.093 |
| Heat Capacity | kJ/kg·K |
| 38°C | 1.717 |
| 204°C | 2.034 |
| 260°C | 2.144 |
| 288°C | 2.194 |
| 316°C | 2.248 |
| Physical Properties | |
|---|---|
| Viscosity ASTM D445 | cSt |
| 40°C | 36.14 |
| 100°C | 16.57 |
| 260°C | 5.19 |
| 288°C | 4.54 |
| 316°C | 4.03 |
| Density ASTM D1298 | d/ml |
| 38°C | 0.949 |
| 204°C | 0.811 |
| 260°C | 0.767 |
| 288°C | 0.744 |
| 316°C | 0.721 |
| Vapour Pressure ASTM D2879 | kPa |
| 38°C | 0 |
| 204°C | 0.138 |
| 260°C | 1.793 |
| 288°C | 3.516 |
| 316°C | 6.826 |
| Distillation Range ASTM D2887 | |
| 10% | 495°C |
| 90% | 680°C |
Note: The values quoted in the table above are typical of normal production.
They do not constitute a specification.
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