O-rings, o ring cord, rubber rope,backups, quad rings, square rings, o-cord, ... NBR, VITON, SILICON,,,,ETC Viton O-RING CORD, viton RUBBER ROPE,viton rubbe sheet:The sizes from 3mm, 3.5mm ... : excellent, Toluene : excellent , Fuel C : excellent ,Gasoline : very good ,Water < 100°C : very goodHydraulic sealing items.backups , dowty seals, u ... FKM seals, silicone seals, NBR seals,o-ring cord, rubber sheet