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

 

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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