Materials Technology

Button-enquiry Elastomers - Pharmaceutical
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James Walker's pharmaceutical grades of ethylene-propylene-diene, fluorocarbon and silicone elastomers have been independently tested and certified to United States Pharmacopeia (USP) Class VI. In addition, we offer two DuPont™ Kalrez® grades with USP Class VI.

This stringent biological evaluation has been designed to ensure that products manufactured from the material will be non-toxic, and suitable for use in selected medical devices or in contact with injectable drugs.

Full Product Range

DuPont™ Kalrez® 6221 & 6230 - Pharmaceutical

For high-purity duties in pharmaceutical & food processing

  • Certificated to USP Class VI. 
  • Sealing ability of rubber with almost universal chemical resistance.
  • Thermally stable up to 260°C for Stage II sterilisation.
  • Low contamination from extractables.

Elast-O-Pure® EP75 Black - Pharmaceutical

Developed for pharmaceutical environments

  • Certificated to USP Class VI.
  • Ethylene-propylene-diene terpolymer with extremely low extractables.
  • Very low compression set for long-term sealing efficiency.
  • Excellent resistance to SIP and CIP processes.

Elast-O-Pure® GF75 Black - Pharmaceutical

Meets stringent pharmaceutical requirements

  • Certificated to USP Class VI.
  • Based on DuPont™ Viton®.
  • Fluorocarbon with extremely low extractables.
  • Excellent resistance to SIP and CIP processes. 

Elast-O-Pure® SIL70 Translucent - Pharmaceutic

Platinum-cured translucent silicone (VMQ)

  • Certificated to USP Class VI.
  • ADI-free material.
  • Low compression set for long-term sealing.
  • High temperature resistance.

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