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low viscosity elastomers advancedengineering electronics/optoelectronics




1.46 Refractive Index at 589nm and contains fumed silica.


  • Two-part, optically clear, silicone system that pours
  • Cures at room temperature or rapidly with heat
  • Offers good physical properties and a broad operating temperature range
  • 1:1 Mix Ratio (Part A:B)


  • For bonding, casting or injection molding of high performance optical components
  • For applications requiring index matching at 1.46

Product Details

Property Average result
Cure System Platinum
Viscosity 37,500 cP
Durometer 30 Type A
Tensile 675 psi
Elongation 275 %
Appearance Translucent
Cte 360 ppm/°C
Cure 30 minutes / 150 °C
Dielectric Strength 510 volts/mil
Lap Shear 510 psi
Mix Ratio 1:1
Operating Temperature -65 °C / 240 °C
Refractive Index 1.46
Specific Gravity 1.14
Tear 40 ppi
Volatile Content 0.2 %
Work Time 2 hours
Comment 1.46 Refractive Index at 589nm and contains fumed silica.
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.

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