Materials commonly used for seals and gaskets are vulcanised elastomers such as ethylene propylene (EPDM) and nitrile butadiene rubber (NBR). However, as they contain sulphur they can leach out hydrogen sulphide over time which can cause corrosion if they are used in LED light fittings. For this reason The SFS Manufacturing Group are now offering silicone rubber components that are guaranteed 100% sulphur free and made from compounds specifically...