Flame spraying, for on-site coating

Flame spraying, developed at the beginning of the last century, is one of many types of thermal spraying processes. In this process, the combustion of a gas/oxygen mixture generates the thermal energy to melt the powder and warm the surface of the substrate. A carrier gas—normally compressed air—serves as the medium for transporting the melted particles to the substrate surface. The advantages of this process include low investment costs and the option of coating large parts on site, without an oven.

In addition to classical application processes, VESTOSINT^® powders may also be processed in the flame-spray process. By this method, the powder is fed into a flame spray gun where it is surrounded and melted by a circular flame. It is then applied to the surface to be coated.

Since the process can be used anywhere, it is particularly favored for repair work, as well as coating pipe bushings, tanks and similar objects.