Thanks to their superior flexibility, sealing properties, and thermal durability, Toyo Tanso's PERMA-FOIL™ graphite sheets are used in a wide range of applications including automobile head gaskets and as alternative packing and gasket material for all types of industrial asbestos.

PERMA-FOIL™ has a microscopic structure that does not let gases or liquids pass through easily and provides excellent sealing properties. As it is classified as graphite, PERMA-FOIL™ can also be used between -200°C and 3200°C in a non-oxidizing atmosphere and features strong resistance to acids and alkalis.

Toyo Tanso offers various grades of different thicknesses and densities, allowing us to propose products to suit your application, conditions, or atmosphere.