Silicone and Polyisoprene Rubber Parts

Silicone and Polyisoprene Rubber Part Coatings

Silicone’s popularity for use in medical devices has been growing. This is due to its compatibility with bodily fluids and strong chemical structure. Advancements in medical polymers are also part of this push toward next-generation single-use medical devices, implants and packaging technology.

In order to get the right material, configuration and manufacturing process for a device’s proper end use, it’s key to choose the proper technology to customize the silicone components for the right application. We’ll review the advantages and disadvantages of several types of processing techniques for silicone plus post-fabrication services like coating, sheeting, tubing and packaging.

What Coatings Fit Your Silicone and Polyisoprene Rubber Parts

FluoroMed® - PTFE coating

Slick Sil LSR Coated Silicone Rubber - Eliminate the Stickiness of Silicone Rubber

  • Low friction (.31) vs. raw silicone (.65)
  • Chemical bond
  • Thin film (.0005” – .001”)

SlickSil® Coating makes silicones slippery

  • When use on catheters SlickSil® reduces the frictional properties of silicone
  • Reductions in friction from 40 – 60%
  • Can be applied to 40 to 90 durometer silicone
  • Cure temperatures of less than 350 F
  • Replacement for Parylene
  • Chemical bonding versus mechanical bond to the silicone
  • Flexible 

FluoroMed®-AM  Added  to SlickSil® coating 

  • FluoroMed® AM is an anti- microbial additive for all our coatings
  • Important additive for that the sanitization and safety of the patient
  • FluoroMed® AM can be added to our SlickSil® coating
  • Silver ion technology for an improve product

Eliminate the Stickiness of Silicone Rubber

Surface Solutions Group has developed a totally conformable yet flexible and low friction Slick Sil® LSR coating for silicone rubber that is bonded chemically to the silicone substrate. Slick Sil® LSR is a replacement for parylene, which is a physical bond and tends to crack and peel when the substrate is flexed or stretched. This dramatic low friction coating Slick Sil® for silicone rubber allows designers and engineers to have the benefits of silicone rubber without the high friction surface.

All molded or extruded silicone rubber components can be processed with the SSG Slick Sil® LSR low friction technology. SSG’s Slick Sil® LSR is a great parylene replacement coating that makes silicone slippery.

Low Friction & Flexible Replacement for Parylene

Slick Sil® LSR is a translucent matte coating designed to reduce the coefficient of friction (COF) and hence, the friction force of molded and extruded silicone elastomers. The ability of the Slick Sil® LSR coating system to reduce the surface friction of elastomeric silicone parts enables

LIM® (Liquid Silicone Rubber), HCR, and RTV materials to be utilized in areas that were previously closed to silicones due to their high inherent COF.

Key Features:

  • Low friction (.31) vs. raw silicone (.65)
  • Chemical bond
  • Thin film (.0005” – .001”)
  • Elastomeric
  • Excellent elongation
  • Reduces surface dust pick up
  • VOC (Volatile Organic Compound) free
  • Biocompatible (USP class VI requirements)
  • Can be tinted by using silicone compatible pigments
  • Anti-microbial properties (optional)
  • Disadvantages of Parylene & Silicone Lubricants
  • Parylene:
    • A rigid coating that cracks on flexible silicone (physical bond)
    • Requires time-consuming and expensive vapor deposition process
    • No anti-microbial properties
  • Silicone Lubricants:
    • If not applied correctly, the lubricant can migrate
    • Extra cost and step in manufacturing process
    • Contamination of other manufacturing areas in facility
    • Extremely expensive
    • No anti-microbial properties


Mission Accomplished!

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