The main advantage of Powder flame spray coasting over the wire flame spray coating is that a much wider range of materials can be easily processed into powder form giving a larger choice of coatings such as metals, alloys, carbides, polymers and ceramic powders.
In Flame spray coatings system, Material in powder/wire/rod form is melted in a flame (oxy-acetylene flame most common, Flame temperature nearly 3,000�C) and atomized using compressed air to form a fine spray in this flame spray coating process. When the spray contacts the prepared surface of a substrate material with particle velocity of 80 m/s, the fine molten droplets rapidly solidify forming a coating.
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