Implant Line




  • Two-part, white silicone system designed for use with injection molding equipment
  • Cures with heat via addition-cure chemistry
  • 1:1 Mix Ratio (Part A: Part B)
  • High tear strength
  • Designed to resist blocking and rehealing that otherwise might be induced by the radiation sterilization of molded parts.


  • For the injection molding of parts requiring a material with a medium durometer including: molded rubber stoppers, gaskets, seals, valves, o-rings and other precision parts
  • Suitable for over-molding applications
  • Can be used with NuSil’s Healthcare color masterbatches for applications requiring colored silicones
NuSil Technology’s MED-4842 may be considered for use in human implantation for a period of greater than 29 days.

Product Details

Property Average Result
Durometer 44 Type A
Tensile 1,070 psi (7.38 MPa)
Elongation 400 %
Tear 250 ppi (44.09 kN/m)
Appearance White
Cure 10 minutes / 150 °C
Cure System Platinum
Extrusion Rate 215 g/minute
Mix Ratio 1:1
Specific Gravity 1.17
Stress at Strain 540 psi / 200 % (3.72 MPa / 200 %)
Work Time
Comment Injection Molding Elastomer, Resists Blocking

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.