• Two Part, Transparent, 1:1 Mix ratio (A:B)
  • Low volatility and high purity
  • High tensile strength, low viscosity
  • REACh and RoHS compliant
  • Tested per UL-94 and passed V-0
  • Requires heat to cure


  • Designed for optically harsh environments such as High Power LED and UV LED packages
  • Adheres to ceramic, PPA and aluminum without a primer (See Appendix 1)
  • Has excellent thermal stability (See Appendix 1)
  • Protects electrical components and assemblies against shock, vibration, moisture, dust, chemicals, and other environmental hazards

Product Details

Property Average Result
Cure System Platinum
Viscosity 2,740 cP (2,740 mPa*s)
Durometer 50 Type A
Tensile 1,130 psi (7.79 MPa)
Elongation 150 %
Appearance Clear
Cure 60 minutes / 150 °C
Ionic Content Cl <2.5 ppm
Ionic Content K <2.5 ppm
Ionic Content Na <5 ppm
Lap Shear 477 psi (3.29 MPa)
Mix Ratio 1:1
Refractive Index 1.41
Specific Gravity 1.03
Volatile Content 1 %
Volume Resistivity 1,100,000,000,000,000 ohmcm
Comment Low Volatility, 1.41 Refractive Index at 589nm. Long pot life and requires heat to cure (80 C). Primerless adhesion to ceramic, plastics and metals. Tested per UL94 and passes V0.

Contact NuSil™ to Order Now

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.

Contact Us

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.