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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
Durometer 55 Type A
Lap Shear 500 psi
Viscosity 55,000 cP
Cure System Alkoxy
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.

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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