Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Fluids & Lubricants Functions
- Technologies
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Features & Benefits
- Labeling Claims
- Fluids & Lubricants Features
Applications & Uses
- Markets
- Fluids & Lubricants Type
- Applications
Antifriction Agents & Lubricants
- Application Details
- For practical purposes, the useful temperature range of WACKER® AP 500 is between -35 °C and +200 °C.
- However, this presupposes that heat-stressing of the fluid occurs under "chemically pure" conditions.
- Even trace amounts of acids, alkalis, mineral oils, organometallic compounds, metal salts or metal oxides can seriously reduce the service life.
- The flash point of the silicone fluid may be changed by heat-stressing.
- It is therefore particularly important in open systems to check the flash point at least once a year and more often if operating conditions demand.
Properties
- Physical Form
- Odor
- Odorless
- Typical Properties
- Properties
- Heat transfer fluid
- Pressure transfer fluid
- Dielectric in capacitors and transformers
- Base fluid of heat resistant lubricants
| Value | Units | Test Method / Conditions | |
| Coefficient of Thermal Expansion (0 - 180 °C) | 0.00082 - 0.00085 | mLmL⁻¹K⁻¹ | — |
| Recommended Service Temperature | -35 to +200 | °C | — |
| Density (at 25°C) | approx. 1.08 | g/cm³ | DIN 51757 |
| Dielectric Constant (at 25°C, 100Hz) | approx. 2.9 | — | — |
| Dielectric Strength | approx. 20.0 | kV/mm | — |
| Dissipation Factor (tan δ, at 100Hz, 25°C) | approx. 0,0004 | — | — |
| Flash Point | approx. 270 | °C | ISO 2592 |
| Ignition Temperature | min. 400 | °C | DIN 51794 |
| Kinematic Viscosity (at 25°C) | approx. 500 | mm²/s | DIN 51562 |
| Refractive Index (at 25°C) | approx. 1.51 | — | DIN 51423 |
| Specific Heat (at 25°C) | 1.46 J/gK | J/gK | — |
| Thermal Conductivity (at 50°C) | 0.14 | W/m.K | — |
| Volatile Content (250°C, 2 hours, 5 g) | max. 1.0 | % | — |
Packaging & Availability
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