Medium Viscosity Pure Silicone Fluids
| Chemical Name: | Polydimethylsiloxane Fluid / PDMS Silicone Oil |
| Product Category: | Pure Silicone Fluids – Silicone Fluids |
| Structural Formula: |  |
| CAS No.: | CAS No. 63148-62-9 |
| EINECS: | 203-492-7 |
| Molecular Formula: | C₆H₁₈OSi₂ |
| Molecular Weight: | 162.38 g/mol |
Medium Viscosity Pure Silicone Fluids
Medium Viscosity Pure Silicone Fluids are clear, colorless, and odorless Polydimethylsiloxane (PDMS) fluids or Silicone Oils. These high-performance fluids have viscosities ranging from 50 cSt to 1,000 cSt at 25°C.
These Medium Viscosity Silicone Fluids offer excellent lubricity, high dielectric strength, and low viscosity change with temperature (low VTC), making them ideal for a wide range of applications. With low pour points, high flash points, and a wide service temperature range, these fluids ensure stable and reliable performance in various environments.
The refractive index (RI) of these Silicone Oils ranges from 1.3970 to 1.4000, and they exhibit inertness to nearly all substrates, making them suitable for industries such as electronics, lubrication, and automotive.
| Viscosity (cSt) | 50 | 100 | 200 | 350 | 500 | 1000 |
| Specific Gravity | 0.960 | 0.966 | 0.968 | 0.970 | 0.971 | 0.971 |
| Refractive Index | 1.402 | 1.4030 | 1.4031 | 1.4032 | 1.4033 | 1.4035 |
| Pour Point | -55°C | -55°C | -50°C | -50°C | -50°C | -50°C |
| Flash Point (open cup) | 285°C | 315°C | 315°C | 315°C | 315°C | 315°C |
| V.T.C | 0.59 | 0.60 | 0.60 | 0.60 | 0.60 | 0.61 |
| Thermal Expansion (cc/cc °C) | 0.00106 | 0.00096 | 0.00096 | 0.00096 | 0.00096 | 0.00096 |
| Thermal Conductivity g/cal/cm/sec °C | 0.00036 | 0.00037 | 0.00037 | 0.00037 | 0.00038 | 0.00038 |
Properties:
- Medium Viscosity PDMS Silicone Oils
- High Flash Points
- Low pour points (as low as ‐55°C)
- Wide Service Temperature Range
- Low viscosity change at temperature (low VTC)
- RI Matching Fluids for RI Values between 1.402 to 1.4035
- High Dielectric Strength
- High Damping Action
- Stable under high rates of pressure
- Stable under high rates of shear
- Newtonian behavior under shear
- Excellent Lubricity
Applications Include:
- Laboratory Bath Fluids
- Heat Transfer Fluids
- Dielectric Fluids
- Damping Fluids
- ORC Turbo Generator Fluids
- Hydraulic Fluids
- High Pressure Fluid
- Flow Control Fluid
- Refractive Index Matching Fluids
- RI Matching Fluids for LED and Optics
- Low Dielectric Constant Fluids for Photonics
- VOC Exempt Fluids for Renewable Energies
- Silicone Lubricants for Plastic Parts
- Silicone Lubricants for Rubber Parts
- Calibration Fluid
- Fluid for Touch Screen Technology
Packaging Specifications
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Medium Viscosity Pure Silicone Fluids : Guide
Medium Viscosity Silicone Fluids are ideal for Flow Control, Temperature Control, and Motion Control technologies. These high-performance fluids are especially effective in instruments, gauges, and devices exposed to extreme temperatures and high pressures.
For laboratory bath fluids and heat transfer fluids, PSF-50cSt and PSF-100cSt are excellent choices, offering a wide service temperature range, low viscosity change with temperature, and high dielectric strength. These qualities ensure optimal performance in various scientific and industrial applications.
The refractive index values of Medium Viscosity Pure Silicone Fluids also make them essential in Optics research, LED technologies, and Sensor technologies.
With excellent lubricity, these Pure Silicone Fluids are widely used for lubricating a variety of rubber and plastic parts, such as O-rings, gaskets, seals, grommets, hoses, and cables, providing reliable performance in diverse applications.
