Tokyo-based rubber manufacturer Sansho Kogyo Co. Ltd. is moving toward more frequent use of hydrogenated nitrile butadiene rubber (HNBR) and fluororubber in its rubber materials, citing increased industry demand for durability and heat resistance. Traditionally, rubber products have been optimized for oil resistance, using high quantities of nitrile butadiene rubber (NBR). The production of more compact engines in recent years,…
