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


The warranty period provided by Polymer systems Technology ltd (hereinafter “PST”) is 12 months from the date of shipment when stored below 40°C in original unopened containers. Unless PST provides a specific written warranty of fitness for a particular use, PST’s sole warranty is that the product will meet PST’s then current specification. PST specifically disclaims all other expressed or implied warranties, including, but not limited to, warranties of merchantability and fitness for use. The exclusive remedy and PST’s sole liability for Packaging Warranty 50 mL Side-by-Side Kit 12 Months 200 mL Side-by-Side Kit 400 ml Side-by-Side Kit 2 Pint Kit (910 g) 2 Gallon Kit (7.28 kg) 10 Gallon Kit (36.4 kg), Inc. All rights reserved. Trademarks are owned by PST or its affiliates unless otherwise noted. breach of warranty is limited to refund of purchase price or replacement of any product shown to be other than as warranted. PST expressly disclaims any liability for incidental or consequential damages.



PST believes, to the best of its knowledge, that the information and data contained herein are accurate and reliable. The user is responsible to determine the material’s suitability and safety of use. NuSil Technology cannot know each application’s specific requirements and hereby notifies the user that it has not tested or determined this material’s suitability or safety for use in any application. The user is responsible to adequately test and determine the safety and suitability for their application and NuSil Technology makes no warranty concerning fitness for any use or purpose. PST has completed no testing to establish safety of use in any medical application. PST has tested this material only to determine if the product meets the applicable specifications. (Please contact PST for assistance and recommendations when establishing specifications.) When considering the use of PST products in a particular application, review the latest Material Safety Data Sheet and contact PST with any questions about product safety information. Do not use any chemical in a food, drug, cosmetic, or medical application or process until having determined the safety and legality of the use. The user is responsible to meet the requirements of the U.S. Food and Drug Administration (FDA) and any other regulatory agencies. Before handling any other materials mentioned in the text, the user is advised to obtain available product safety information and take the necessary steps to ensure safety of use.



PST disclaims any expressed or implied warranty against the infringement of any domestic or international patent/intellectual property right. PST does not warrant the use or sale of the products described herein will not infringe the claims of any domestic or international patent/intellectual property right covering the product itself, its use in combination with other products, or its use in the operation of any process.

For Use With Liquid Silicone Rubbers:



Marking Inks


Dispensing Guns

Dispensing Guns
Dispensing Guns

Mixing Equipment

Silicone Mixing Dispensing Degassing Equipment
Mixing and Dispensing