• Description
  • 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
  • Use a sealing, caulking, adhesive or potting material in electronic and space applications where high vacuum environments are encountered
  • 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 45,000 cP (45,000 mPa*s)
Lap Shear 650 psi (4.48 MPa)
Durometer 50 Type A
Appearance Red
Cure 7 days / RTV
Elongation 160 %
Mix Ratio 100:0.5
Specific Gravity 1.45
Tensile 900 psi (6.21 MPa)
Work Time 3 hours
Comment *1) Primed Lap Shear 650 psi (4.5 MPa)

High-precision laser performance with ultra-low outgassing silicone

Learn how NuSil collaborated with a leading manufacturer of lasers to improve longevity and stability of space-based lasers.

Learn more

Save to favorites

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.