"The high velocity oxy-fuel process was invented only 20 years ago, yet has thrust the thermal spray application range into areas that were once unattainable. In HVOF spraying, a combination of process gases, such as hydrogen, oxygen and air, are injected into the combustion chamber of the torch at high pressure and ignited. The resulting gas velocities achieve supersonic speeds. The powder is injected into the flame and also accelerated to supersonic speed. The results are the densest thermal spray coatings available."
Cannot go into any detail right now but this process has been refined by a few sources such that it is being used in high wear/pressure areas where chrome was only suitable (Military Aerospace). The issue with 99% of what this is used for commercially is the thickness of the HVOF coating. Now it has been solved. Working with the best M&P people in the world as well as the builder of the System for the AC will be applying this to one of my Speedy guns in the future. There will be nothing like it on the planet----and you know I like to be different as well as have the neatest toys!