• A low density, two-part, red, thixotropic RTV silicone
  • 100: 0.5 Mix Ratio (Base: Curing Agent)


  • For applications requiring low outgassing and minimal volatile condensables under extreme operating conditions to avoid condensation in sensitive devices
  • As a bonding, sealing, or potting material in electronic and space applications
  • Provides radiation resistance, low thermal conductivity, oxidation stability, thermal stability and good ablative characteristics
  • Especially useful to bond solar cells to solar array panels
  • 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 125,000 cP (125,000 mPa*s)
Lap Shear 100 psi (0.69 MPa)
Durometer 50 Type A
Appearance Red
Cure 7 days / RTV
Dielectric Strength 645 volts/mil (25.16 kV/mm)
Elongation 60 %
Mix Ratio 100:0.5
Specific Gravity 0.64
Tack Free Time 13 hours
Tensile 175 psi (1.21 MPa)
Work Time 4 hours
Comment Long Worktime, Low Density* 1, )Primed Lap Shear 100 psi (0.69 MPa)

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For over 40 years, the NuSil brand has offered a wide range of high-purity silicones. Our team is ready to collaborate with you to provide silicone solutions to satisfy your unique requirements. For additional guidance during your selection process, or to order a sample, contact NuSil today.

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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.