Metal Finishes: Bluing, Electroplating, and Spray-Coats
Metal Finishes: Bluing, Electroplating, and Spray-Coats Weather isn’t always kind to steel: rust never sleeps. For the first six centuries of its existence, guns also had to deal with corrosive residues, first from black powder residue forming sulphuric acid, then from salts from mercury-based primers. First gun finish was bluing, a form of carefully controlled surface oxidation.…
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