Polymer Systems
Technology Limited

Life Science

Premium Care:
Medical Class VI:


Liquid Silicone Rubbers

Class VI Supported Liquid Silicone Rubber

  • 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 lowdurometer 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
Typical PropertiesAverage Result
Extrusion Rate†, Part A220 g/min
Extrusion Rate†, Part B220 g/min
Work Time>24 hours
Cured: 5 minutes at 165°C (329°F)
Specific Gravity1.08
Durometer, Type A19
Tensile Strength1,080 psi (7.5 MPa)
Elongation 890%
Tear Strength90 ppi (15.9 kN/m)
Stress at 200% Strain90 psi (0.6 MPa)

Regulatory Support

  • NuSil Technology’s Class VI (C6) products meet the requirements defined in ISO-10993 for Surface Devices with “limited” (<24 hours) or “prolonged” (1 to 30 days) contact duration

NuSil Technology’s SIL-5920 shall not be considered for use in human implantation for a period of greater than 29 days

Recommended Primer MED1-161

Note: Some over-molding applications may require the use of a primer.

# Packaging

10 Gallon Kit (36.0 kg)
2 Drum Kit (360 kg)


12 Months

Product Profile - Full Details Product Profile
Safety Data Sheet Material Safety Data Sheet
Example packaging
Example packaging
For Use With Liquid Silicone Rubbers:



Marking Inks


Dispensing Guns

Dispensing Guns
Dispensing Guns

Mixing Equipment

Silicone Mixing Dispensing Degassing Equipment
Mixing and Dispensing