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adhesives/sealants advancedengineering space





  • Two-part, flowable, red 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 sealing, caulking, adhesive or potting material in electronic and space applications where high vacuum environments are encountered
  • For bonding 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 55,000 cP
Lap Shear 500 psi
Durometer 55 Type A
Appearance Rust Red
Cte 330 ppm/C
Cure 7 days / RTV
Dielectric Strength 825 volts/mil
Elongation 150 %
Mix Ratio 100:0.5
Specific Gravity 1.49
Tack Free Time 8 hours
Tear 40 ppi
Tensile 950 psi
Thermal Conductivity 0.27 W/(mK)
Work Time 3 hours
Comment Pourable RTV Cure, * 1 )Primed Lap Shear 500 psi (3.4 MPa)
Display in metric units

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.


Developed in direct response to our work in the most challenging environments, NQS is a systematic approach to achieving consistent quality that goes far beyond what you'd expect.