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Plasma spray can be used to produce coatings. of virtually any metallic, cermet, or ceramic ma-. terial. The coatings are used for most of the types. of applications described in a subsequent section. The transferred plasma-arc process adds to. plasma spray the capability of substrate surface heat-. ing and melting. Figure 7 is a schematic repre-. sentation of the process.
1 Excellent corrosion resistance (works fantastic on aluminum) 2  Uniform, 1 mil thick epoxy surface finish. 3  Being 1 mil thick, most threads do not need masking or plugging. 4  E-coat finish is very resistant to many chemicals (see attachment)  Can be used as a primer for powder coating to create an extremely durable finish.