NOVELTY - A graphite article has graphite sheet formed of particles of exfoliated graphite. The graphite sheet has increased electrical and thermal conductivity in transverse to the opposed planar surfaces of the sheet.    USE - The inventive graphite article, e.g. graphite sheet, is used in components for electrochemical fuel cells, gaskets, or heat conducting and heat resistant articles.    ADVANTAGE - The inventive graphite article exhibits enhanced isotropy with respect to thermal and electrical conductivity and fluid diffusion.    DETAILED DESCRIPTION - A graphite article comprises a flexible sheet of graphite having opposed planar major surfaces. The graphite sheet is formed of particles of exfoliated graphite. An optically detectable portion of the interlocked particles of expanded graphite is unaligned with the opposed planar surfaces. The graphite sheet has increased electrical and thermal conductivity in transverse to the opposed planar surfaces as compared to a graphite sheet of the same thickness and density which does not comprise an optically detectable portion of particles of expanded graphite which are unaligned with the opposed planar surfaces which are not optically detectable. INDEPENDENT CLAIMS are also included for:    (1) a method for the production of resin-impregnated flexible graphite sheet, comprising reacting raw natural graphite flake-like particles with a liquid intercalated solution to form intercalated graphite particles, exposing the intercalated graphite particles to greater than or equal to 700degreesC to expand the intercalated graphite particles to form a stream of exfoliated graphite particles, compressing the stream of exfoliated graphite particles into a coherent self-supporting mat of flexible graphite, contacting the flexible graphite mat with liquid resin and impregnating the mat with liquid resin, and calendering the flexible graphite mat to increase the density to form a flexible graphite sheet having a thickness of not greater than 1 inch;    (2) a method for forming a graphite plate sealed with a resin sealant, comprising providing a graphite sheet having opposed planar surfaces defining an interior portion, providing a curable resin sealant, contacting the resin sealant with at least one of the planar surfaces, allowing the resin sealant to communicate through the pores, compressing the sheet to form a graphite plate having graphite density after compression, where the graphite density is greater after compression than before compression, and curing the resin sealant contained within the pores to seal the plate; and    (3) a graphite plate comprising a graphite sheet formed from exfoliated graphite particles and having an internal portion with pores between opposed planar surfaces, and a curable resin sealant contained at greater than 70% of the pores on a volume basis, wherein upon curing the resin sealant the graphite sheet is sealed with the resin sealant to form the plate.    The sheet is formed from exfoliated graphite particles to provide the interior with pores and defines a graphite density of the sheet.    DESCRIPTION OF DRAWING(S) - The figure shows the making of a mass of un-aligned expanded graphite particles.    Optional additive (4)