TOPCOAT® Ultra

This ceramic coating is mainly used where a very high degree of chemical resistance against strong acids or bases is required. The coating is tribologically similar to the standard TOPCOAT®. The colour is dark grey/green.

The coating consists of a plasma-sprayed nickel-chrome adhesive layer with a minimum thickness of 100μm and a chromium oxide ceramic top layer of approximately 200µm.

The areas of application are the same as those of the standard TOPCOAT® ceramic coating, with the following differences:

  1. Further improved chemical resistance
  2. Improved hardness
  3. Improved wear resistance
  4. Relatively tough coating (by adding SiO2)

Download Product Datasheet   Example seal construction    Product overview


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Used technique

Plasma Spraying

Plasma spraying

In a plasma spray gun a plasma gas is ionized between an anode and a cathode. The plasma reaches temperatures between 15,000 and 20,000°C. A coating powder is injected into the plasma jet by a carrier gas, where it melts before depositing on the…

 

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