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high consistency rubbers lifesciences generalhealthcare

Premium Care




High Tear Strength


  • Two-part, high tear strength silicone elastomer
  • Medium durometer silicone
  • 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

NuSil Technology’s MED-4050 shall not be considered for use in human implantation for a period of greater than 29 days.

Product Details

Property Average result
Durometer 50 Type A
Tensile 1,500 psi
Elongation 985 %
Tear 250 ppi
Appearance Translucent Gray
Cure 10 minutes / 115 °C
Cure Rate Scorch 1.1 minutes
Cure Rate T90 2.6 minutes
Cure System Platinum
Mix Ratio 1:1
Plasticity 95 mils
Specific Gravity 1.16
Stress @ Strain 300 psi / 200 %
Work Time 3.5 hours
Comment High Tear Strength
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.

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