Upon request, Saint-Gobain can manufacture custom liner solutions, including slit liners and container closers, in any diameter, color, thickness and durometer.  We also produce Polytetrafluoroethylene (PTFE) film that can be applied to the face of a container closure for high-purity or volatile chemical applications.  

Environmental Applications 

Customer specified thickness, ultra-low bleed silicone with PTFE face, 30-60 durometer hardness

  • Chemically inert and ultra-pure
  • Provides a tight seal
  • Made from high-quality silicone that reduces sticking
  • Available in any color for easy identification 


Customized pre-slit silicone liner with PTFE face in choice of color

  • Low durometer for easy needle insertion and increased resistance to coring
  • Pre-slit liner releases vacuum pressure within vial after a sample is extracted
  • Available in any color for easy identification

Learn more about High Purity Closures

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High Purity Specialty Packaging Datasheet
PDF | 2 pages | 183.13 KB
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