• Two-part, gray, thermally conductive RTV silicone
  • 100:0.2 Mix Ratio (Base: Curing Agent)
  • Designed for enhanced performance in extreme low and high temperatures


  • For applications requiring low outgassing and minimal volatile condensables under extreme operating conditions to avoid condensation in sensitive devices
  • To provide moderate heat transfer between electrical/electronic components and their heat sinks
  • Use to adhere openings in modules or housings where grooves and other configurations require a limited flow material
  • For applications requiring a broader operating temperature range

Product Details

Property Average Result
Thermal Conductivity 1.22 W/(mK)
Cure System Alkoxy
Tensile 750 psi (5.17 MPa)
Appearance Gray
Cte 130 ppm/°C
Cure 7 days / RTV
Durometer 90 Type A
Elongation 35 %
Lap Shear 475 psi (3.28 MPa)
Mix Ratio 100:0.2
Specific Gravity 2.55
Tear 90 ppi (15.87 kN/m)
Work Time 2 hours
Comment *22) 1.2 W/mK, *3) Primed Lap Shear 475 psi (3.3 MPa)

What Is Space Grade?

Discover what it takes to make silicones worthy of the distinction "Space Grade" and the rigorous testing that these materials undergo.

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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.