Coating / Impregnation

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Graphite Surface Treatments – Enhancing Performance in Extreme Environments

To improve the properties of graphite – such as density, oxidation resistance, and wear resistance at high temperatures – we offer advanced surface treatments and impregnations .

Our solutions include:

Graphite paint – alcohol- and water-based, providing protection against dust and surface wear, while enhancing lubrication and cleanliness of graphite insulation.

Water-based SiC coating – an oxidation-resistant treatment that protects graphite surfaces from degradation at elevated temperatures.

Plasma coating with zirconium oxide (ZrO₂) – a durable surface protection that prevents carburization and metal penetration during brazing and heat treatment.

CVD coatings in cooperation with Toyo Tanso – such as SiC and TaC, applied by chemical vapor deposition for maximum durability and oxidation resistance in extreme conditions.


Why These Treatments Matter

  • Improved oxidation resistance – SiC and TaC coatings protect graphite surfaces against high-temperature degradation.

  • Increased wear resistance – ZrO₂ coatings extend component lifetime in demanding processes.

  • Protection against metal contact – minimizes the risk of molten metals infiltrating or adhering to graphite surfaces during processing.

  • Customized surface properties – alcohol- and water-based paints make graphite easier to handle and machine, while also improving lubrication.


Typical Applications

  • Industrial furnaces & heat treatment – protected surfaces maintain integrity during continuous heating in oxidation-prone environments.

  • Brazing and metalworking – zirconium oxide coatings prevent unwanted metal bonding.

  • Semiconductor processes – CVD coatings such as SiC and TaC ensure optimized performance in highly demanding environments.

  • Battery and energy components – improved wear resistance and oxidation protection ensure long-term stability and reliability.


With our advanced surface modifications, graphite becomes tailored for extreme environments – delivering longer lifetime, higher reliability, and superior protection against degradation. The ideal solution for the most demanding applications.