Implant Line




  • Uncatalyzed, vinyl-functional, high consistency silicone elastomer
  • Requires addition of a peroxide catalyst for vulcanization
  • Strained through a 400-mesh screen (minimum)


  • For a wide variety of fabrication techniques for the healthcare industry including: molding, calendering and extruding
NuSil Technology’s MED-4520 may be considered for use in human implantation for a period of greater than 29 days.

Product Details

Property Average Result
Durometer 28 Type A
Tensile 1,320 psi (9.1 MPa)
Elongation 950 %
Tear 135 ppi (23.81 kN/m)
Appearance Translucent
Cure 5 minutes / 116 °C
Cure System Peroxide
Mix Ratio 1 PART
Post Cure 2 hours / 177 °C
Specific Gravity 1.1
Stress at Strain 105 psi / 200 % (0.72 MPa / 200 %)
Comment Uncatalyzed

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.