o rings size guides available to download and print from here

O Rings

O Rings, simple but effective

O rings are reliable and relatively inexpensive. This means they are one of, if not the most commonly used products in sealing solutions.

O Ring Kits

  • Imperial and Metric sizes.
  • Available in Nitrile, Viton, Silicone and Neoprene.
  • Bespoke kits available. Tell us what you need and we’ll make up the kit.

O Ring Cord

For times when standard sizes are not suitable for your sealing solution we can supply O Ring Cord. This will enable you to make custome sized o rings to suit your application.

  • Sponge and solid.
  • Thickness starts from 1mm.

FEP + PFS Encapsulated O Rings

Either silicone or Viton O Ring with a seamless FEP encapsulation/jacket. The combination of these components creates an O-ring that is virtually chemically inert.

  • Elasticity is provided by the O Ring and the chemical resistance by the FEP jacket.
  • The FEP jacket has similar properties to PTFE but is more malleable.


PTFE is extremely chemical inert but lacks elasticity and is available as the following:

  • O Rings.
  • Back-up Rings are washer-like devices that are used to prevent a seal from extruding through any gaps while under pressure, used in conjunction with O-rings in high-pressure applications for support or as spacers. Solid, Split and Spiral available.


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