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Specialty Compounds RTP Company

Wacker Wacker® AP 200 Silicone Fluid
Categories: Fluid; Polymer

Material Notes: Product description: WACKER® AP 200 Silicone fluid is a clear, colorless, and odorless polydimethylsiloxane with a high proportion of phenyl groups.

Application:

  • heat transfer fluid
  • pressure transfer fluid
  • dielectric in capacitors and transformers
  • base fluid of heat resistant lubricants
For practical purposes, the useful temperature range of WACKER® AP 200 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.

Information provided by Wacker Chemie AG.

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Physical PropertiesMetricEnglishComments
Density 1.07 g/cc0.0387 lb/in³DIN 51757
Volatiles <= 1.5 %
@Temperature 250 °C,
Time 7200 sec
<= 1.5 %
@Temperature 482 °F,
Time 2.00 hour
5g
Kinematic Viscosity 200 cSt200 cStDIN 51562
 
Electrical PropertiesMetricEnglishComments
Dielectric Constant 2.9
@Frequency 100 Hz
2.9
@Frequency 100 Hz
Dielectric Strength 20.0 kV/mm508 kV/in
Dissipation Factor 0.00040
@Frequency 100 Hz
0.00040
@Frequency 100 Hz
 
Thermal PropertiesMetricEnglishComments
CTE, linear 82.0 - 85.0 µm/m-°C
@Temperature 0.000 - 180 °C
45.6 - 47.2 µin/in-°F
@Temperature 32.0 - 356 °F
Specific Heat Capacity 1.46 J/g-°C0.349 BTU/lb-°F
Thermal Conductivity 0.140 W/m-K0.972 BTU-in/hr-ft²-°F
Flash Point 260 °C500 °FISO 2719
Ignition Temperature >= 400 °C>= 752 °FDIN 51794
 
Optical PropertiesMetricEnglishComments
Refractive Index 1.501.50DIN 51423
Transmission, Visible 90 %90 %"Clear" but manufacturer does not quantify.
 
Descriptive Properties
Appearancecolorless, clear

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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PWACK9730 / 205259

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