Celanese Corporation announced the launch of Hostaform® RF, a low permeation acetal copolymer tailored for Small Off-Road Engine and marine fuel tanks, hydraulic reservoirs, and industrial bulk containers. As the leading acetal copolymer supplier for automotive fuel systems, Celanese has specifically formulated Hostaform® RF to deliver an easy-to-use, drop-in solution for traditional rotational molding. The rotational molding method creates parts by placing material inside a heated, hollow, rotating mold where material is dispersed evenly. The new RF resin system delivers the excellent mechanical and chemical-resistant properties of Celanese’s Hostaform® acetal copolymer while also providing a single-layer solution versus multilayer tank systems requiring secondary treatment, such as fluorination. Hostaform® RF delivers an unprecedented balance of impact and durability performance along with low fuel permeation that customers need to meet U.S. EPA regulations.