• 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 (37,500 mPa*s)
Durometer 30 Type A
Tensile 675 psi (4.66 MPa)
Elongation 275 %
Appearance Translucent
Cure 30 minutes / 150 °C
Dielectric Strength 510 volts/mil (19.89 kV/mm)
Lap Shear 510 psi (3.52 MPa)
Mix Ratio 1:1
Operating Temperature -65 °C / 240 °C
Refractive Index 1.46
Specific Gravity 1.14
Tear 40 ppi (7.05 kN/m)
Volatile Content 0.20 %
Work Time 2 hours
Comment 1.46 Refractive Index at 589nm and contains fumed silica.

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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.

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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.