The basic raw material for the manufacture of seals is a graphite foil. This film is produced by the expanding flake graphite in an environment of strong acids and high temperature (crystal exfoliation process) and then by molding and rolling mass expanded to form a thin flexible film. The main uses of the produced film production include sealing tape, sealing spiral, ring gland, and various types of valves, seals formed. We offer foil with a purity above 99.9% nuclear, and clean for most industrial applications.