Thermal spray began with metallizing, invented in 1910 and still widely used today. A single wire is entered into an oxy fuel flame creating a molten stream of metal where compressed air then propels it onto the work surface forming a coating.

Energy Source & Consumption

Oxy Fuel 2500 Scfh

Spraying Factors

Spray Rates5 to 15 lbs/hour
Deposit Efficiencies65% to 75%
Deposit Per Pass.002” to .005”
Particle Velocities600 fps

Coating Properties

MaterialsWire drawn materials, base metals, carbon & stainless steels, some alloy materials
Coating Finishing ProcessesMachine, Mill or Grind
Hardness Range of Materials/CoatingsRc 25-50
Typical Oxide Content5% to 10%
Typical Porosity Levels5% to 10%
Erosion Resistance RatingFair to Good
Abrasive Wear Resistance RatingFair to Good
Thermal Cycling & Thermal Shock CapabilitiesFair to Good
Co-efficient of Thermal Expansion & ContractionFair to Good
Corrosion/Oxidation Resistance RatingFair