Polymer Systems
Technology Limited

Advanced Engineering




Controlled Volatility Black Silicone Elastomer

  • Two-part, low viscosity, black silicone system
  • 10:1 mix ratio (Part A:B)
  • For electronic and space applications requiring low outgassing and minimal volatile condensables to avoid condensation in sensitive devices
  • As an embedding or potting compound for environmental protection of electronic assemblies and components
  • Provides protection from extremes in temperature, humidity, radiation, thermal stress and mechanical stress
  • As an adhesive in optical applications requiring a black material to block light
Typical PropertiesAverage Result
Appearance, Part A*Black
Appearance, Part B*Transparent
Viscosity, Part A*8,500 cP (8,500 mPas)
Work Time*3 hours
Tack-Free Time*6 hours
Cured: 30 minutes at 150°C (302°F)
Specific Gravity*1.05
Durometer, Type A*50
Tensile Strength*950 psi (6.6 MPa)
Dielectric Strength 850 volts/mil (33.5 kV/mm)
Coefficient of Linear Thermal Expansion
-100°C to -50°C360 µm/m/°C
-30°C to 250°C370 µm/m/°C
Collected Volatile Condensable Material (CVCM)*0.01%
Total Mass Loss (TML)*0.04%

The test data shown for this material is the average value for typical properties. All of these properties may not be tested on a lot to lot basis and cannot be used to draft specifications. Please contact NuSil® for assistance and recommendations in establishing limits for product specifications.

Recommended Primer CF1-135

Note: Some bonding applications may require the use of a primer.


50 Gram Kit (0.051 kg)
100 Gram Kit (0.101 kg)
500 Gram Kit (0.505 kg)


6 Months

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