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  • An optically clear, two-part silicone
  • A pourable, medium viscosity material
  • Cures with heat via addition-cure chemistry
  • 1:1 Mix Ratio (Part A: Part B)


  • For use in potting, encapsulating, coating, and injection or transfer molding applications

Product Details

Property Average Result
Durometer 50 Type A
Viscosity 16,000 cP (16,000 mPa*s)
Work Time 4 hours
Tensile 950 psi (6.55 MPa)
Appearance Translucent
Cure 30 minutes / 150 °C
Cure System Platinum
Elongation 140 %
Mix Ratio 1:1
Refractive Index 1.43
Specific Gravity 1.05
Tear 30 ppi (5.29 kN/m)
Comment 1.43 R.I., Optically Clear

The Strongest Silicone Elastomer Ever Developed

Dr. Jim Lambert, NuSil® Director of Research and Development, Biomaterials, introduces our breakthrough material that has a tensile strength of up to 50% greater than existing silicone elastomers on the market.

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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.