• Two-part, low viscosity clear RTV silicone
  • Designed for enhanced performance in extreme low and high temperatures
  • 10:1 Mix Ratio (Part A:Part B)


  • For applications requiring low outgassing and minimal volatile condensables under extreme operating conditions
  • 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
  • Low viscosity for applications requiring superior flow
Meets or exceeds the ASTM E 595 low outgas specifications outlined in NASA SP-R-0022A and European Space Agency PSS-014-702, with a TML of ≤1% and CVCM of ≤0.1%

Product Details

Property Average Result
Cure System Platinum
Viscosity 5,300 cP (5,300 mPa*s)
Lap Shear 200 psi (1.38 MPa)
Durometer 40 Type A
Appearance Clear
Cure 4 hours / 65 °C
Elongation 100 %
Mix Ratio 10:1
Refractive Index 1.43
Specific Gravity 1.04
Tensile 650 psi (4.48 MPa)
Work Time 2 hours
Comment Low / High Temperature,*4 ) Primed Lap Shear 200 psi (4.1 MPa), Optically Clear

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.