Super Low Viscosity Silicone Fluids
| Chemical Name: | Polydimethylsiloxane Fluid / PDMS Silicone Oil |
| Product Category: | Pure Silicone Fluids – Silicone Fluids |
| Structural Formula: |  |
| CAS No.: | CAS No. 107‐46‐0, CAS No. 107‐51‐7, CAS No 141‐62‐8, CAS No. 141‐63‐9. |
| EINECS: | 203-492-7 |
| Molecular Formula: | C₆H₁₈OSi₂ |
| Molecular Weight: | 162.38 g/mol |
Super Low Viscosity Silicone Fluids
Super Low Viscosity Pure Silicone Fluids are clear, colorless, and odorless linear Polydimethylsiloxane fluids / PDMS Silicone Oils that range in viscosities from 0.65cSt (thinner than water) to 2cSt (centistokes) @ 25°C.
They are characterized by their low pour points, volatile nature (evaporate in open system), stability at low temperature, low surface tensions (high spreadability), low viscosity‐to‐temperature coefficients (viscosity changes little even at extremely low temperatures), low MW, low viscosities (all close to water), high dielectric strength and RI values ranging from 1.3750 to 1.3900.
They are characterized by their low pour points, volatile nature (evaporate in open system), stability at low temperature, low surface tensions (high spreadability), low viscosity‐to‐temperature coefficients (viscosity changes little even at extremely low temperatures), low MW, low viscosities (all close to water), high dielectric strength and RI values ranging from 1.3750 to 1.3900.
| Viscosity | 0.65cSt | 1cSt | 1.5cSt | 2cSt |
| Specific Gravity | 0.761 | 0.818 | 0.853 | 0.873 |
| Pour Point | -68°C | -85°C | -90°C | -100°C |
| Flash Point | -1°C | 39°C | 63°C | 75°C |
| Refractive Index | 1.3750 | 1.3825 | 1.3874 | 1.3900 |
| V.T.C | 0.31 | 0.37 | 0.46 | 0.48 |
| Thermal Expansion cc/cc °C | 0.00134 | 0.00134 | 0.00134 | 0.00117 |
| Thermal Conductivity g/cal/cm/sec °C | 0.00024 | 0.00024 | 0.00025 | 0.00026 |
Properties:
- Low viscosity PDMS Silicone Oils…viscosities close to water
- Low pour points (as low as -100°C)
- Low Temperature Stability
- Low surface tension fluids (high spreadability)
- Low viscosity change at temperature (low VTC)
- High Compressibility
- RI Values between 1.3750 to 1.3900
- High Dielectric Strength
- Low Molecular Weight
- Newtonian behavior under shear
- Varying rates of evaporation…excellent for bases fluids in cosmetic formulations
- 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
- Fast evaporating fluids for Personal
- Care formulations
- Low MW Fluids for Research
- 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
- Ozone Safe Solvents
- High Pressure Fluids
- High Compressibility Fluids
Packaging Specifications
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Polydimethylsiloxane Fluid : Guide
Due to their low molecular weight and refractive index values, Low Viscosity Pure Silicone Fluids are widely used in Optics research, LED technologies & Sensor technologies.
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,…
Unlike higher viscosities PDMS Silicone Oils, Super Low Viscosity Silicone Fluids are characterized by their volatility (varying rates of evaporation). Combined with their low surface tensions (high spreadability), and non‐greasy feel, they are used as base fluids, carrying agents and wetting agents in a wide range of personal care products.
