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  • A very soft two-part, low viscosity, silicone elastomer
  • 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
NuSil Technology’s MED-4086 shall not be considered for use in human implantation for a period of greater than 29 days.

Product Details

Property Average Result
Durometer 55 Type 000
Viscosity 6,450 cP (6,450 mPa*s)
Work Time 18 hours
Tensile 40 psi (0.28 MPa)
Cure 45 minutes / 150 °C
Cure System Platinum
Elongation 475 %
Mix Ratio 1:1
Stress at Strain 8 psi / 200 % (0.06 MPa / 200 %)
Comment Ultra Soft Elastomer

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.

Read more

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.