Natural graphite flake is chemically treated to form Graphite
Intercalation Compound. This intercalation compound is then rapidly heated to decomposition. The result is a rapid expansion of the particle size. The bulk density of the worm-like graphite powders is about 0.003g/cc. Then they are formed into graphite sheets by rolling.

Principal applications:

Gaskets used in flanges, covers of observation holes, level meters.

Direct attach to the metal surfaces for gas phase sealing effectively.

Especially the expanded graphite rolls can be used as a material for

automatic producing lines.