Abstract: This invention relates to a lining for induction furnaces, and more specifically a lining for coreless induction furnaces. A flexible lining material (10) for lining an induction furnace (1) has a laminated structure comprising metal foil (12) and at least one heat-resistant supporting layer (14). The incorporation of a very thin metallic foil layer (12) in the lining material (10) creates a vapour barrier preventing vapours such as zinc from reaching the induction coil (4) of the furnace. The lining material (10) is designed so that the metal foil (12) is not significantly affected by the induction fields during the operation of the furnace.