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Trade name for a process for the production of phosphate coating on steel articles by immersion in an aqueous solution of manganese or zinc acid with phosphate.



an obsolete term for one method of phosphatizing. The method was patented by the American company Parker Rust-Proof Company of Detroit, Mich., in 1918.

References in periodicals archive ?
Whilst this work was being done I also had a beautiful custom big game back sight fitted, and I had the rifle Parkerised (which was a bit of a waste of time as it was of course worn off over the years!).