DOWSIL 510
Harmonization Code : 3215907090 | Ink, whether or not concentrated or solid (excl. printing ink, printer/copier ink cartridges incorporating mechanical or electrical components, and solid ink in engineered shapes for printers/copiers)
Main features
- Available in Four Viscosities
- High-Temperature Fluid Stability
- Low-Volatility Process Fluid
Product Description
DOWSIL™ 510 Fluid is a phenylmethyl polysiloxane silicone fluid for hydraulic, motion-dampening, and heat-transfer applications. Available in nominal viscosities from 50 to 30,000 cSt, it combines high-temperature stability during continuous use at 232°C (450°F) with an estimated pour point as low as -57°C (-70°F), depending on viscosity. Its high flash point, low volatility, oxidation resistance, and relatively constant thermal conductivity support evaluation in demanding fluid systems, including hydraulic arrestors, hydraulically actuated valves and instruments, and heat-transfer equipment.
Key features
- Broad viscosity selection: Available in 50, 100, 500, and 30,000 cSt grades for different hydraulic and damping requirements.
- Wide temperature capability: Demonstrates high-temperature stability during continuous use at 232°C (450°F), with an estimated pour point as low as -57°C (-70°F).
- High-temperature fluid properties: Provides a minimum flash point of 274°C (525°F), an estimated fire point above 343°C (650°F), and low volatility.
Applications
- Hydraulic arrestors and motion-dampening systems
- Hydraulically actuated valves and instruments used in nuclear plants
- High- and low-temperature heat-transfer systems
Technical Specifications
General Properties
Thermal Properties
Additional Information
DOWSIL™ 510 Fluid
A phenylmethyl polysiloxane silicone fluid available in multiple viscosities for hydraulic arrestors, motion-dampening systems, hydraulically actuated equipment, and heat-transfer applications. It combines wide-temperature capability with high flash and fire points, low volatility, and chemical inertness.
DOWSIL™ 510 Fluid is supplied in multiple nominal viscosities and container sizes.
Available grades and physical properties
Values shown are typical and are not intended for use in preparing specifications.
| Property | Value | Unit | Condition or context |
|---|---|---|---|
| Viscosity | 50, 100, 500, 30,000 | cSt | At 25°C (77°F) |
| Specific gravity | 0.985, 0.992, 0.997, 0.990 | — | At 25°C (77°F); values correspond respectively to the listed viscosity grades |
| Color | 20, 20, 20, 50 | APHA | Values correspond respectively to the listed viscosity grades |
| Packaging | 8, 40, 440 | lb | Equivalent net weights: 3.6, 18.1, and 200 kg |
Fluid selection and compatibility
Select the viscosity grade according to the hydraulic, damping, or heat-transfer system requirements. Evaluate fluid compatibility and elastomer interactions before introducing DOWSIL™ 510 Fluid into an existing system.
Representative hydraulic or heat-transfer system
Storage and handling
Store DOWSIL™ 510 Fluid in its original, unopened container at 25°C (77°F). It has no known limit to useful life under these conditions; Dow warrants product shelf life for up to 60 months from the date of manufacture. Review the current product and safety information before handling.
Thermal and fluid properties
Values shown are typical unless identified as minimum or estimated and are not intended for use in preparing specifications.
| Property | Typical value | Unit or condition |
|---|---|---|
| Viscosity/temperature coefficient | 0.655 | — |
| Flash point, minimum | 274 (525) | °C (°F) |
| Fire point, estimated | >343 (>650) | °C (°F) |
| Autoignition temperature, estimated | 482 (900) | °C (°F) |
| Pour point, estimated | -57 (-70) | °C (°F) |
| Specific heat | 0.405 | At 100°C (212°F) |
| Thermal conductivity | 0.00036 | g-cal/cm²-sec-°C at 50°C (122°F) |
| Volatile content | 2.5 | % by weight after 4 hours at 250°C (482°F) |
| Compression | 2.80 / 7.95 | % at 5,000 / 20,000 psi; 100 cSt grade |
| Bulk modulus | 179,000 / 253,000 | At 5,000 / 20,000 psi; 100 cSt grade |
Pour-point results may be affected by cooling rate and may be lower than the temperature at which the fluid melts. Evaluate multiple lots when low-temperature phase behavior is critical to the application.
Hydraulic, damping, and heat-transfer uses
DOWSIL™ 510 Fluid is used where hydraulic response, compressibility, temperature resistance, and heat-transfer capability are important evaluation factors.
Product resources
Evaluate DOWSIL™ 510 Fluid for your system
Krayden can help review viscosity selection, operating-temperature requirements, fluid compatibility, packaging options, and application-specific considerations for hydraulic, motion-dampening, or heat-transfer systems using DOWSIL™ 510 Fluid.
