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apply phosphate coating to metal workpiece

Description

Description

Prevent steel or iron workpieces from rusting and other corrosion by applying a protective phosphate coating to the metal surface through a chemical reaction of phosphate salts and a dilute solution of phosphoric acid with the surface of the coated workpiece, forming a protective layer of insoluble, crystalline phosphates, usally iron. Phosphate coatings are usually applied to car bodies in their manufacturing process.

Alternative Labels

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