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  • Two-part, ultra high properties silicone elastomer
  • Cures with heat via addition-cure chemistry
  • Has a non-tacky surface and no volatile by-products or peroxide residues
  • Strained through a 400-mesh screen (minimum)
  • 1:1 Mix Ratio (Part A: Part B)


  • For a wide variety of fabrication techniques for the healthcare industry including: molding, calendering and extruding
  • For applications requiring high physical properties and fatigue and abrasion resistance
NuSil Technology’s MED-4070 shall not be considered for use in human implantation for a period of greater than 29 days.

Product Details

Property Average Result
Durometer 70 Type A
Tensile 1,430 psi (9.86 MPa)
Elongation 750 %
Tear 300 ppi (52.91 kN/m)
Appearance Translucent
Cure 10 minutes / 138 °C
Cure Rate Scorch 0.9 minutes
Cure Rate T90 2.7 minutes
Cure System Platinum
Mix Ratio 1:1
Post Cure 4 hours / 177 °C
Special Feature
Specific Gravity 1.19
Stress at Strain 600 psi / 200 % (4.14 MPa / 200 %)
Work Time 2 hours
Comment Abrasion / Fatigue Resistant

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.