Suitable rubbers will retain their properties indefinitely under all weather conditions – hot, cold, dry, wet or humid.
The combination of weather resistance and the ability to maintain sealing forces indefinitely makes rubber highly suitable for electronic instruments seals. Examples include case gaskets, shaft and cable seals, bellows and operating keypads. Rubber components are also used in the harsh environments of marine applications, sealing delicate electronics against the elements.
EPDM rubbers have exceptional resistance to water and ozone attack while Silicones are unaffected by extremes of weather.
Examples of Components
Silicone rubber seal used to waterproof a submersible electronic compass, operating at depths of over one meter.