Expandable Graphite

High Performance. Independently Validated.

Volt Carbon Technologies’ Expandable Graphite delivers exceptional performance, confirmed by a third-party analysis conducted in Europe. Produced using Volt’s proprietary dry separation process, our graphite is ideally suited for expandable graphite applications.

Laboratory analysis reported:

• Carbon Purity: 98.2% (LOI method)

• Moisture Content: 0.1%

• Volatile Content: 0.2%

Thermal stability testing demonstrated impressive resistance to oxidation and degradation:

• Weight loss: 3.24% after 2 hours at 650°C

• Weight loss: 7.4% after 4 hours at 650°C

The graphite was easily processed into expandable graphite using conventional methods, completing smoothly with no complications. The final material achieved:

• Expansion Rate: 325 ml/g — considered excellent for +80 mesh graphite

• Post-expansion Carbon Purity: ~98.5%

• Expansion Onset: ~200°C

These results confirm the quality of Volt’s dry processing technology. Our Expandable Graphite offers a combination of ease of processing and high thermal performance — making it an ideal choice for industrial applications.

Quotes from 3rd party analysis:

“The expansion rate of the expandable graphite is 325 ml/ g. This is an excellent result for +80 mesh material.
The material seems to be very suitable for the production of expandable graphite.”

“In summary, it can be said that the material provided be easily and without problems converted into expanded graphite.
The expansion rate achieved (as the most important quality parameter) is at 325 ml/g.”