Implant Line




  • Two-part, high consistency 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-4770 may 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 1,415 psi (9.76 MPa)
Elongation 760 %
Tear 300 ppi (52.91 kN/m)
Appearance Translucent
Cure 10 minutes / 138 °C
Cure System Platinum
Mix Ratio 1:1
Post Cure 4 hours / 177 °C
Special Feature
Specific Gravity 1.19
Stress at Strain 595 psi / 200 % (4.1 MPa / 200 %)
Work Time 2.5 hours
Comment Abrasion / Fatigue Resistant

What is Medical Grade?

Discover how Medical-grade silicones are specifically designed, manufactured and purified to meet the strictest needs of the healthcare industry.

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.