... O-RING CORD, viton RUBBER ROPE,viton rubbe sheet:The sizes from 3mm, 3.5mm,4mm,5mm ... oil : excellent, Toluene : excellent , Fuel C : excellent ,Gasoline : very good ,Water < 100°C : very goodHydraulic sealing items.backups , dowty ... seals, u seals,o rings, wipers, oil seals, piston seals, v packings ... seals, NBR seals,o-ring cord, rubber sheet