Product Description

Shin-Etsu's FE-73-BK is a single component, heat cure, fluoro-based polysiloxane potting gel that will cure to form a soft, pliable elastomer to protect sensitive electronic components. FE-73-BK provides superior oil and solvent resistance, vibration resistance, and exhibits excellent, unprimed adhesion to metals, plastics, glass, and ceramics.

Product Features

  • Superior oil and solvent resistance
  • Superior vibration resistance protection
  • Excellent electrical insulation
  • Single component
  • Heat cure

Typical Applications

  • Protecting sensitive electronic components in harsh environments


Typical Properties

Potting Gel
Cure Type
One/Two Component
Cold Storage
Density @ 23C (g/cm3)
Viscosity (cps)
Cure Conditions
2hr @ 125C
Penetration (1/10mm)
Volume Resistivity (TΩ·m)
Dielectric Strength (kV/mm)
Dielectric Constant
7.0 @ 50Hz
Dielectric Dissipation Factor
1.0 x 10-1 @ 50Hz
Thermal Conductivity (W/m·K)
Coefficient of Linear Expansion α1 (ppm)
Usable Temperature Range (C)
-50 to +180

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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