Low Viscosity Pure Silicone Fluids
| Chemical Name: | Polydimethylsiloxane Fluid / PDMS Silicone Oil |
| Product Category: | Silicone Fluids– Products |
| Structural Formula: |  |
| CAS No.: | CAS No. 63148-62-9 |
| EINECS: | 203-492-7 |
| Molecular Formula: | C6H18OSi2 |
| Molecular Weight: | 162.38 g/mol |
Low Viscosity Pure Silicone Fluids
Low Viscosity Pure Silicone Fluids are clear, colorless, and odorless linear Polydimethylsiloxane fluids / PDMS Silicone Oils that range in viscosities from 5cSt to 20cSt (centistokes) @ 25°C.
They are characterized by their low pour points, low surface tensions, low viscosity change at temperature (low VTC), excellent lubricity, high dielectric strength, RI Values between 1.3970 to 1.4000, wide service temperature range and inertness to virtually all substrates.
| Viscosity | 5cSt | 10cSt | 20cSt |
| Specific Gravity | 0.918 | 0.818 | 0.853 |
| Pour Point | -90°C | -70°C | -65°C |
| Flash Point | 135°C | 163°C | 232°C |
| Refractive Index | 1.3970 | 1.3990 | 1.4000 |
| V.T.C | 0.54 | 0.56 | 0.59 |
| Thermal Expansion cc/cc °C | 0.00109 | 0.00108 | 0.00107 |
| Thermal Conductivity g/cal/cm/sec °C | 0.00028 | 0.00032 | 0.00034 |
Properties:
- Low viscosity PDMS Silicone Oils…viscosities slightly higher than water
- Low pour points (as low as -90°C)
- Wide Service Temperature Range
- Low surface tension fluids (high spreadability)
- Low viscosity change at temperature (low VTC)
- RI Values between 1.3970 to 1.400
- High Dielectric Strength
- Newtonian behavior under shear
- Excellent Lubricity
- California VOC Exempt…replacement for petroleum based solvents that are not VOC Compliant
Applications Include:
- Laboratory Bath Fluids
- Heat Transfer Fluids
- Dielectric Fluids
- Low Viscosity Damping Fluids
- ORC Turbo Generator Fluids
- Low Viscosity Hydraulic Fluids
- Refractive Index Matching Fluids
- RI Matching Fluids for LED and Optics
- Low Dielectric Constant Fluids for Photonics
- VOC Exempt Fluids for Renewable Energies
- Lubricants for Plastic Parts
- Lubricants for Rubber Parts
Packaging Specifications
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Polydimethylsiloxane Fluid : Guide
Low Viscosity Silicone Fluids are widely used as laboratory bath fluids / heat transfer fluids due to their low viscosity, low pour points, low viscosity change at temperature and high dielectric strength. They are particularly effective for baths and systems that have to circulate. Unlike higher viscosity fluids, their viscosities remain low even at extremely low temps. As such, they are easy to circulate and pump…
The low molecular weight and refractive index values of Low Viscosity Pure Silicone Fluids make them widely used in Optics research, LED technologies & Sensor technologies.
