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topic 10962

Parkerising Formula



I am looking for some pakerising formulas. Anyone out the have any recipe's they are willing to share, I sure would appreciate it.

Terry Strode
Milspec Coatings NZ - New Zealand

Parkerizing Solution


Parkerizing is an iron phosphate, differing from Coslettizing by the addition of an oxidizing agent and catalyzer, usually magnesium oxide.

In Coslettizing, a ferrous phosphate solution made from iron filings, and 1% phosphoric acid and water are boiled together for about 2 hours.

From the Metals Handbook, 1948.

tom pullizzi portrait
Tom Pullizzi
Falls Township, Pennsylvania


Manganese oxide, rather than magnesium oxide?

Bill Reynolds
Bill Reynolds
   consultant metallurgist
Ballarat, Victoria, Australia
We sadly relate the news that Bill passed away on Jan. 29, 2010.

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