High Viscosity 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 |
Polydimethylsiloxane Fluid / PDMS Silicone Oil
High Viscosity Pure Silicone Fluids are clear, colorless, and odorless Polydimethylsiloxane (PDMS) fluids or Silicone Oils, with viscosities ranging from 5,000 cSt to 100,000 cSt at 25°C.
These High Viscosity Silicone Fluids offer excellent lubricity, high dielectric strength, and low viscosity change with temperature (low VTC), ensuring reliable performance across a wide range of conditions. They also feature low pour points, high flash points, and a wide service temperature range, making them ideal for high-performance applications in extreme environments.
With a refractive index (RI) between 1.3970 and 1.4000 and inertness to nearly all substrates, these PDMS fluids are well-suited for applications in electronics, lubrication, and other demanding industries.
| Viscosity (cSt) | 5,000cSt | 10,000cSt | 12,500cSt | 30,000cSt | 60,000cSt | 100,000cSt |
| Specific Gravity | 0.975 | 0.975 | 0.975 | 0.975 | 0.975 | 0.975 |
| Refractive Index | 1.4035 | 1.4035 | 1.4035 | 1.4035 | 1.4035 | 1.4035 |
| Pour Point | -50°C | -48°C | -48°C | -42°C | -42°C | -41°C |
| Flash Point (open cup) | 315°C | 315°C | 315°C | 315°C | 315°C | 321°C |
| V.T.C | 0.61 | 0.61 | 0.61 | 0.61 | 0.61 | 0.61 |
| Thermal Expansion (cc/cc °C) | 0.00096 | 0.00096 | 0.00096 | 0.00096 | 0.00096 | 0.00094 |
| Thermal Conductivity g/cal/cm/sec °C | 0.00038 | 0.00038 | 0.00038 | 0.00038 | 0.00038 | 0.00038 |
- High Viscosity PDMS Silicone Oils
- High Flash Points
- Low pour points
- Wide Service Temperature Range
- Low viscosity change at temperature (low VTC)
- RI Matching Fluids for RI Value 1.4035
- High Dielectric Strength
- High Damping Action
- High Oxidation Resistance
- Stable under high rates of pressure
- Stable under high rates of shear
- Excellent Lubricity
Applications Include:
- Damping Fluids for Gauges, Instrument & Electronics
- O‐Ring, Gasket & Valve Lubricant
- Cable Lubricant
- Dielectric Fluids
- Down‐Hole Fluids for Oil & Gas Exploration
- Hydraulic Fluids
- Flow Control Fluid
- High Pressure Fluid
- Refractive Index Matching Fluids
- RI Matching Fluids for LED and Optics
- VOC Exempt Fluids for Renewable Energies
- Lubricants for Plastic Parts
- Lubricants for Rubber Parts
- Fluid for Touch Screen Technology
- Vibration Control Fluid
- Calibration Fluid
Packaging Specifications
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High Viscosity Silicone Fluids : Guide
High Viscosity Silicone Fluids are commonly used in Flow Control, Temperature Control, and Motion Control technologies. Compared to conventional oils, these Silicone Fluids offer significant advantages for instruments, gauges, and devices exposed to extreme temperatures and high pressures.
With their high damping action, low viscosity change with temperature, and wide service temperature range, High Viscosity Silicone Fluids are ideal as damping fluids to reduce vibration and control the amplitude of motion in various applications.
These Silicone Fluids also possess excellent lubricity, high tack, and are compatible with virtually all plastic and rubber materials. As a result, they are widely used for lubricating components like O-rings, gaskets, valves, and seals, ensuring smooth operation and reliability in demanding conditions.
