Parkerizing


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parkerizing

[′pär·kə‚rīz·iŋ]
(metallurgy)
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.

Parkerizing

 

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 ?
However, it was thought that having a bright part gleaming out of the ejection port might be a bad thing, in the dim green of the jungle, and so the mil-spec was changed to require a flat, dark Parkerizing finish to the parts.
Nidec Motor Corp., Mena Nidec Motor Corp., Paragould Nihon Parkerizing Co.
I don't care for a high-polish blue on my working pistols; Parkerizing or black Cerakote is durable and looks great.
The condition is very good plus, with original finish on the stock and the British version of Parkerizing on the metal.
Less important updates included a change from polished blue--on very early pre-Victory .38 M&P revolvers--to a matte Parkerizing called sandblast blue, and finally to a simple sandblast finish termed "Black Magic."
The finish is a utilitarian flat Parkerizing. You'll see a stamped list of patent dates on the left side of the slide, just like on the original G.I.
Every surface on the chrome moly vanadium barrel--5.56 NATO chamber, bore, exterior and even the front sight base--are finished with Melonite, which is an extraordinarily hard, durable, corrosion-resistant surface considered by many to be superior to both Parkerizing and hard chrome plating.
The 9mm version is carbon steel given a phosphate finish usually called Parkerizing. It's tinted black and not green like most American military firearms.
Shortly prior to WWII, the military decided all its firearms would have the matte finish called Parkerizing. This is why some original Al's are blued and most others "Parked." All military A1's had the same 5-inch barrel and 7-round magazine, just like the original 1911.
Four new DuraCoat firearm finishes are available from Lauer Custom Weaponry: DuraBlue Spray-On Bluing, DuraBlue Nitre, DuraPark Spray-On Parkerizing Replicator and DuraBrown Spray-On Browning.
Supposedly melomte is a superior finish compared to bluing or parkerizing but I don't have enough guns with melonite finishes to say whether the statement is true.
When compared to traditional surface treatments such as chrome plating, phosphate, anodizing, black oxide, bluing, Parkerizing, and others, Cerakote[TM] shows enhanced performance characteristics in the areas of hardness, corrosion protection, lubricity, impact resistance, adhesion, abrasion resistance and flexibility.