Polymer Systems
Technology Limited

Advanced Engineering




Ultra Low Outgassing™ Thermally Conductive Silicone

  • Two-part, white, thermally conductive silicone
  • Cures with the addition of heat
  • 15:1 Mix Ratio (Part A:B)
  • For applications requiring Ultra Low Outgassing™ and minimal volatile condensables under extreme operating conditions to avoid condensation in sensitive devices
  • To provide heat transfer between electrical/electronic components and their heat sinks
  • Use to adhere integrated circuit substrates, base plates, heat sinks or where grooves or other configurations require a non- flowable to limited flow material
Typical PropertiesAverage Result
Work Time*2 hours
Cured: 7 days minimum at ambient temp. and humidity
Specific Gravity*1.53
Durometer, Type A*75
Tensile Strength*200 psi (1.4 MPa)
Tear Strength*50 ppi (8.8 kN/m)
Lap Shear Strength* (primed w/ CF1-135)150 psi (1.0 MPa)
Thermal Conductivity* (tested @ 43°C (109°F))1.60 W/mK(38 x 10-4 cal/(cm sec°C))
Dielectric Strength540 volts/mil (21.3 kV/mm)
Volume Resistivity5.3 x 1014 ohm cm
TGA Take-Off (1% wt. Loss, 10°C/min. in air)350°C (662°F)
Coefficient of Linear Thermal Expansion
Below Tg (-100°C to -50°C)165 ppm/°C (165 µm/m/°C)
Above Tg (-30°C to 250°C)225 ppm/°C (225 µm/m/°C)
Collected Volatile Condensable Material (CVCM)*0.007%
Total Mass Loss (TML)*0.05%

*The above properties are tested on a lot-to-lot basis. Do not use as a basis for preparing specifications. Please contact NuSil Technology for assistance and recommendations in establishing particular 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 (0.102 kg)
500 Gram Kit (0.503 kg)


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