High tech metals seals are used when the application conditions are outside the specification limits of a polymer (when the temperature is too cold or too hot, vacuumed). The seals developed here consist out an spring optional liner, and jacket and made out a soft material (aluminium, silver, copper or nickel). Manufactured by harder plating (a spring energised seal ), these seals are very highly resilient to corrosive chemicals and intense levels of radiation and are especially relevant where seal longevity is needed. The spring seal is especially designed for the nuclear industry for the main reactor pressure vessel (collaborations with UKAEA on JET, SCK CEN) and can find other applications such as oils & gas, space, and valves and for life science