Aluminum metal spraying has been around a long time. In the early 1960 air frames on air craft was sprayed with aluminum to prevent corrosion on seaplanes that were use in salt water. The planes were fabric covered. The air frames had to be preheated before the aluminum was sprayed. This worked very well but didn't produce a real smooth finish. The cost of spraying the metal frames got too expensive so it wasn't used any more for that purpose.
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Joe Hartson
There is more than one way to go to town and they are all correct.
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