SIGRATHERM® Highly Conductive Expanded Graphite Powder

SIGRATHERM Highly Conductive Flexible Graphite Powder

What is expanded graphite powder?

Expanded graphite powder – also known as flexible graphite powder, exfoliated graphite powder, expanded natural graphite powder or just graphite powder – is produced from purified natural graphite flakes.

The graphite flakes are mixed with a highly oxidizing acid to form an intercalation compound which is expanded by applying high temperatures. The resulting expanded graphite worms are mechanically compressed into graphite foil without fillers or binders. Then the foil is ground to expanded graphite powder. Depending on the grinding (fine to coarse) different particle sizes or grain sizes are possible.

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