Product Description

HIVAC F-4 is a methylphenyl silicone fluid with superior resistance to oxidation, heat, and chemicals. HIVAC F-4 is used for vacuum pumps applications and enables prolonged, stable operation.

Product Features

  • Superior oxidation, heat, and chemical resistance.
  • Does not crack under heat or intake gas, unlike petroleum and fatty acid ester pump oils.
  • Does not emit oxidation gas.
  • Does not produce acid, tar, pitch, or other substances when vacuum is broken during heating.
  • Enables prolonged and stable operation of vacuum pumps.

Typical Applications

  • High-vacuum oil diffusion pump applications.


Typical Properties

Product type (taxonomy term)
Modified Silicone Fluids
Vacuum Pump Oil
Specific Gravity @ 25°C
Surface Tension 25°C (mN/m)
Volume Resistivity (TΩ·m)
0.1 min.

Note: Values are not for specification purposes.

Warranty- The information and data contained herein are believed to be accurate and reliable; however it is the user's responsibility to determine suitability of use. Since Shin-Etsu Silicones, Inc. cannot know all of the uses to which its products may be put or the conditions of use, it makes no warranties concerning the fitness or suitability of its products for a particular use or purpose. You should thoroughly test any proposed use of our products and independently conclude satisfactory performance in your application. Likewise, if the manner in which our products are used requires governmental approval or clearance, you must obtain it. Shin-Etsu Silicones, Inc. warrants only that its products will meet its specifications. There is no warranty of merchantability of fitness of use, nor any other expressed or implied warranties. The user's exclusive remedy and Shin-Etsu Silicones, Inc.'s sole liability is limited to refund of the price or replacement of any product shown to be otherwise than as warranted. Shin-Etsu Silicones, Inc. will not be liable for incidental or consequential damages of any kind. Suggestions of uses should not be taken as inducements to infringe any patents.


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