What is HVOF?

HVOF, or High-Velocity Oxygen Fuel spraying, is a thermal spray coating process used to produce high-quality coatings that are dense, well-bonded, and have low porosity. It involves injecting fuel (e.g., kerosene, propane, hydrogen) and oxygen into a combustion chamber, igniting the mixture, and expanding the hot gas through a nozzle. Coating material, in powder form, is injected into the gas stream, accelerated to supersonic speeds, and propelled onto the substrate. HVOF coatings are commonly used to provide wear resistance, corrosion protection, and thermal barrier properties to components in industries such as aerospace, automotive, and oil & gas.