What is HVOF?

HVOF is a process that uses supersonic oxygen-fuel exhaust gases to accelerate coating particles up to several times the speed of sound. The tremendous impact energy of the particles fuses them to the base metal with bond strengths that exceed 12,000 psi!

Unlike welding, brazing, or spray-and-fuse coatings, HVOF doesn't rely on heat to fuse the material to the base metal. Therefore, there is no preheating, no distortion, and no internal thermal stresses.

We've successfully applied tungsten carbide coatings to sheet metal as thin as 14-gage!

Just like an F-16 jet taking off on full afterburner, shock diamonds are clearly visible in the exhaust gases of our gun. Each shock diamond indicates Mach 1 of those gases. We've achieved over nine shock diamonds with our equipment, or over 6,000 mph!

Why choose HVOF tungsten carbide coatings over hard chroming?
  1. At least 3X more abrasion resistant in the field. Improved corrosion resistance.
  2. Super hard. HV1100 vs. HV800 (typical readings)
  3. Aluminum?? Our proprietary process can apply carbide to not only aluminum, but also bronze, brass, and magnesium!
  4. Parts can be spot coated. We apply a coating where the wear happens. No need to completely strip a worn part.
  5. Faster process. No more 4-8 week turnaround.
  6. Environmentally safe. Only the fuel gas is combusted in this process--not the coating material. No release of hexavalent chromium--a known carcinogen.
  7. Lower cost. Longer wear life and the ability to spot coat mean stretched equipment maintenance dollars.
  8. A choice of materials. Tungsten carbide, chromium carbide, nickel carbide, stainless steel. Each coating blend solves specific abrasion and corrosion issues.
Where are HVOF coatings used?

Extreme Industrial Coatings