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 (PDMS) fluids or Silicone Oils. These high-performance fluids have viscosities ranging from 0.65 cSt (thinner than water) to 2 cSt at 25°C.
These Silicone Fluids are known for their low pour points, making them ideal for applications requiring stability at low temperatures. They are highly volatile, evaporating quickly in open systems, and feature low surface tension, which allows for superior spreadability. The viscosity of these fluids remains stable even in extreme cold, with low viscosity-to-temperature coefficients.
With low molecular weight (MW) and low viscosity, these PDMS fluids are similar to water, offering excellent dielectric strength. The refractive index (RI) of these Silicone Oils ranges from 1.3750 to 1.3900, making them suitable for various industries requiring high-performance, reliable, and stable fluid properties.
| 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
Low Viscosity Pure Silicone Fluids are known for their low molecular weight and refractive index, making them ideal for Optics, LED technologies, and Sensor technologies.
These Silicone Fluids are commonly used as laboratory bath fluids and heat transfer fluids because of their low viscosity, low pour points, and high dielectric strength. They also have low viscosity change with temperature, ensuring stable performance in various conditions.
Unlike higher viscosity PDMS Silicone Oils, Super Low Viscosity Silicone Fluids are volatile, evaporating at different rates. With their low surface tension and non-greasy feel, they are perfect as base fluids, carrying agents, and wetting agents in personal care products.
