To catalogue
Gelest DES-T12
- Chemical Name
- Polydiethylsiloxane
- Chemical Family
- Silicones
Gelest POLYDIETHYLSILOXANE, TRIETHYLSILOXY TERMINATED, 15-20 cSt (DES-T12) has excellent lubricity. This product functions as a compatibilizer.
Properties
- Physical Form
- Liquid
Product families
Fluids & Lubricants — Additives
- Performance Additives
Other characteristics
- Features
- Excellent Lubricity
- Functions
- Compatibilizer
- Technology
- Fluids & Lubricants
- Packaging Under
- Nitrogen
- HIGHLIGHTS
Polydiethylsiloxanes offer improved metal-metal lubrication and low temperature properties when compared to polydimethylsiloxanes. They are oxidatively stable to 150°C and thermally stable under inert atmospheres to 225°C. These fluids are often used in low temperature aerospace hydraulics or as performance addine to synthetic hydrocarbons.
- Standard Packaging
- 100 g
- Chemical Inventories
- AICS (Australia)
- ECL (Korea)
- ENCS (Japan)
- IECSC (China)
- NDSL (Canada)
- NZIoC (New Zealand)
- PICCS (Phillipines)
- TSCA (USA)
- Fluids and Lubricants Features
- Excellent Lubricity
- Fluids and Lubricants Functions
- Compatibilizer
Technical data
Table 1 of 3
8 rows| Characteristic | Value | Unit |
|---|---|---|
| Molecular Weight | 400 - 500 | g/mol |
| Flash Point | 125.0 | °C |
| Refractive Index (at 20°C) | 1.439 | — |
| Viscosity (at 25°C) | 15 - 20 | cSt |
| Pour Point | -110.0 | °C |
| Density | 0.93 | g/ml |
| Surface Tension | 25 - 28 | dynes/cm |
| Viscosity Temperature Coefficient | 0.77 | — |
Table 2 of 3
3 rows| Characteristic | Value | Unit |
|---|---|---|
| Thermal Conductivity | 3.296 | W/m°C |
| Glass Transistion Temperature (Tg) | -139.0 | °C |
| Specific Heat (at 20-100°C) | 0.40 - 0.47 | cal/mole/°C |
Table 3 of 3
1 row| Characteristic | Value | Unit |
|---|---|---|
| Volume Resistivity (at 20°C) | 10¹³ - 10¹⁴ | ohm-cm |
