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Nuclear standard elastomers

High performance industry standard elastomers for nuclear applications requiring resistance to ionising radiation.

TYPICAL APPLICATIONS
  • Nuclear

In addition to our own compounds and materials that we have developed for customers, James Walker has a long history of expertise in processing industry standard materials and customer specific materials such as EPDM 30H.

When selecting an elastomer for duties with ionising radiation, it is important to consider other factors in addition to radiation resistance. For example, the elastomer should also be evaluated for physical robustness, chemical compatibility and resistance, and temperature performance in the operational environment.

We regularly compound and/or mould the following elastomers for nuclear duties. A number of these materials are specific to particular customers, as indicated, and cannot otherwise be supplied without their authority.

Related Downloads

Materials for use in nuclear applications

English pdf (4 MB) Download

18L - Nitrile elastomer (NBR): a Sellafield Ltd material

Foxglove - Nitrile elastomer (NBR): an EDF material

PB70 - Nitrile elastomer (NBR) of nominal 70 IRHD PMUC approved for use in French nuclear power plants

PB80 - Nitrile elastomer (NBR) of nominal 80 IRHD PMUC approved for use in French nuclear power plants

Lily - Silicone elastomer (VMQ): an EDF material

LR6920 - Silicone elastomer (VMQ): a James Walker material used for products for EDF

LR6935 - Silicone elastomer (VMQ) for non-critical applications: a James Walker material used for products for EDF

Poppy range - Silicone elastomer (VMQ): an EDF range of materials

SIL80/5 - Silicone elastomer (VMQ)

EP18/H/75 - Ethylene propylene elastomer (EPM) of nominal 75 IRHD: PMUC approved for use in French nuclear power plants

EP21/E/80 - Ethylene propylene elastomer (EPDM) of nominal 80 IRHD: PMUC approved for use in French nuclear power plants

EPDM 30H - Ethylene propylene elastomer (EPDM): a Sellafield Ltd material 

Daisy range - Fluoroelastomer (FKM): an EDF range of materials

FR10/70(V) - Viton based fluoroelastomer (FKM) of nominal 70 IRHD. Successfully tested to performance levels in excess of PMUC requirements

LR5602/65 - Viton based fluoroelastomer (FKM) specifically formulated by James Walker for use in high-integrity Magnox nuclear transportation flask seals

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Shieldseal®

Shieldseal materials are James Walker's proprietary materials specifically designed to resist ionising radiation. Their change in physical properties has been monitored over time with gamma radiation to prove compression-set resistance and long service life.

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