Graphite-containing mold body for use as e.g. gasket in chemical plant, is manufactured by mixing fixed additives with graphite particles and compacting, where particles comprises expanded natural graphite and/or synthetic graphite

The body is manufactured by mixing fixed additives with graphite particles and compacting the additives, where the graphite particles comprise natural graphite, expanded natural graphite and/or synthetic graphite. The additive comprises an organic and/or inorganic additive, and the organic additive is formed such that the body is impermeable in a lower temperature range e.g. 20 to 250 degree Celsius, and upper temperature range e.g. 350 to 550 degree Celsius, of an application temperature range of the body. Independent claims are also included for the following: (1) a method for manufacturing a molded body (2) a method for sealing a sealing gap between flanges for setting the molded body. Die Erfindung betrifft einen graphithaltigen Formkörper. Erfindungsgemäß ist der Formkörper durch Vermischen von festen Additiven mit Graphitpartikeln und anschließendes Verdichten hergestellt.