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liquid silicone rubbers lifesciences medicalimplant





NuSil's new LSRs, the MED-5800 series, feature both more efficient rheometry, or "cure profiles", and more consistent viscosities. The result is better in-mold performance – minimal scorch, more efficient fills, lower flash, shorter cure times, less waste – that enables fabricators of critical implantable devices to achieve both higher yields and faster throughputs.


  • Two-part, translucent silicone system designed for use with injection molding equipment
  • Rapid cure with no post-cure required
  • 1:1 Mix Ratio (Part A: Part B)


  • For the injection molding of parts requiring a material with a low 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 color masterbatches for applications requiring colored silicones

NuSil Technology’s MED-5820 may be considered for use in human implantation for a period of greater than 29 days.

Product Details

Property Average result
Durometer 19 Type A
Tensile 1,080 psi
Elongation 890 %
Tear 90 ppi
Appearance Translucent
Cure 5 minutes / 165 °C
Extrusion Rate A: 220 / B: 220 g/minute
Specific Gravity 1.08
Stress @ Strain 90 psi / 200 %
Work Time >24 hours
Display in metric units

The above properties are tested on a lot-to-lot basis. Do not use as a basis for preparing specifications. Please contact NuSil Technology for assistance and recommendations in establishing particular specifications.

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
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