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Parkerising Formula

Hi,

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 at Brownells

(affil links)

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
Falls Township, Pennsylvania

Manganese oxide, rather than magnesium oxide?

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

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