• A clear, two-part, pourable RTV silicone
  • 100: 0.5 Mix Ratio (Base: Curing Agent)


  • For applications requiring low outgassing and minimal volatile condensibles under extreme operating conditions to avoid condensation in sensitive devices
  • As a sealing, caulking, adhesive or potting material in electronic and space applications where high vacuum environments are encountered
  • As a diluent for reducing the viscosity of other tin condensation controlled volatility silicones because of its low viscosity
  • For applications requiring a broader operating temperature range
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 Alkoxy
Viscosity 5,000 cP (5,000 mPa*s)
Lap Shear 45 psi (0.31 MPa)
Durometer 21 Type A
Appearance Clear
Cure 7 days / RTV
Elongation 150 %
Mix Ratio 100:0.5
Refractive Index 1.40
Specific Gravity 1.01
Tack Free Time 7.5 hours
Tensile 80 psi (0.55 MPa)
Work Time 6.5 hours
Comment Diluent for Tin Condensation CV Silicones

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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.