Plasma Spraying from Celcoat, Sheffield

The Plasma Spray process is the most flexible of the thermal spray processes at Celcoat as is allows for a wide range of powders and applications

A highly energetic plasma jet melts and accelerates sprayed material particles allowing deposition of the coating. The heat source (plasma) is created by an inert gas superheated by a dc arc. The powder feedstock is then introduced via an inert carrier gas and is accelerated towards the work piece by the plasma.

Deposits with a thickness from just a few micrometers (µm) up to several millimetres can be produced using a variety of materials, including metals and ceramics.

Benefits of Plasma Spraying

  • Ability to spray with a wide range of materials
  • Flexability to coat onto both small and large components
  • Minimial distportion of the substrate
  • Excellent adhesion with some coatings
  • Excellent control of coating thickness
  • High Dense and strong coatings

Coating Characteristics

  • Corrosion protection
  • Wear resistance
  • Electrical resistivity and conductivity
  • Heat and oxidation resistance
  • Temperature management

Materials Deposited

At Celcoat we have the experience to use Plasma Spraying technology to spray almost any metallic or ceramic, for example:- oxide ceramics like Chrome Oxide and Alumina; Nickel and Molybdenum.


Plasma spraying is our most versatile spray process we have serviced a wide range of industries such as Automotive, power generation, oil and gas processing, paper and pulp, steel rolling, glass processing, pump and valve manufactures, railway and sea transportation to name a few.

Plasma spraying coatings are generally more denser, cleaner and tougher than other thermal spray process (other than HVOF) and the range of materials and applications make this process the most versatile.