How is high-velocity oxygen fuel coated? :- High velocity oxy-fuel coating (HVOF coating) is applied using a specialized thermal spray process. In this method, a mixture of oxygen and fuel is combusted in a high-pressure chamber, creating a supersonic flame. Powdered coating material is then injected into this flame, where it rapidly melts and accelerates towards the substrate. Upon impact, it forms a dense and highly adhesive coating. HVOF coating offers exceptional bond strength and wear resistance, making it ideal for various industrial applications.