In an application where farmed salmon are fed with feed pellets that are transported to the farms on special ships, ContiTech’s Sicon closed conveyor belt system protects the feed during loading and transportation. It keeps the pellets from escaping into the ocean, where they could harm the water quality. The conveyor belt consists of two fabric-reinforced profiles, each with a vulcanized-in steel cord as tensile member. These profiles run over the roller sets and carry a highly flexible rubber pouch containing the pellets. Capable of transporting materials on both the outbound and the return run, the system can negotiate small-radius bends with ease, eliminating the need for transfer stations. These closed belts needed to have a resistance to fish oil, since this is contained in the fish feed. For this purpose, the company has developed an acrylonitrile butadiene rubber compound.