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O-Rings - Viton, NBR, HNBR, EPDM, PTFE, Neoprene, Silicone & Kalrez Rubber

O-ring dimensions, Internal Diameter and Cross Section

Polymax are the largest on-line distributor of O-rings in the UK .In addition to O-rings in NBR and Viton sold online we are able to supply o rings in many other sizes and polymers including Silicone, EPDM, KALREZ® /FFKM on a short lead time.

We can usually supply many other non standard polymers like HNBR, PTFE, XNBR, PU, CR; hardness (40 to 90 ShA) and colours (blue, brown, grey, red, white, yellow, green) in about 4 working weeks (subject to minimum order charge).

Please call us on 01420 472000 for more details

Nitrile (NBR) O-rings

See our range of Nitrile O-rings

Readily available and cost effective o-rings

Viton® (FKM) O-rings

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Viton® O Rings have a low compression set and have high temperature and chemical resistance.

EPDM O-rings

See our range of EPDM O-rings

EPDM has excellent resistance to weathering and ozone, water and steam, with good performance in castor and some phosphate ester based fluids.

Silicone O-rings

See our range of Viton O-rings

Silicone has poor tensile strength, tear resistance and abrasion resistance Silicones possess excellent resistance to temperature extremes.

FEP Silicone / Viton Encapsulated O-rings

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An encapsulated O-ring comprises an elastomer energising core, which has a seamless jacket made from fluoropolymer.

HNBR O-rings

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Hydrogenated nitrile is a synthetic polymer that results from the hydrogenation of nitrile rubber (NBR).

Kalrez® (FFKM) O-rings

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This material has outstanding chemical resistance and a temperature capability up to +350°C.

Ekraz O-rings

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Ekraz parts have a virtually universal chemical resistance. Temperature Range -50°C to +315°C.

PTFE O-rings

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PTFE is an extremely inert material and is unaffected by virtually every known chemical including almost all acids, alkalis and solvents.

PTFE Backup / Support O-rings

See our range of Viton O-rings

Back-up rings are used in conjunction with O-Ring for both static and dynamic sealing applications.

O-Ring Kits

See our range of Viton O-rings

A range of O-Ring kits in various different materials, including NBR, Viton®, EPDM, HNBR and Silicone

O-Ring Cord Kits

See our range of Viton O-rings

A range of Cord kits in various different materials, including NBR and Viton®