Summary for zinc phosphate identification Discussion
The thread asks for a way to identify whether a phosphate-coated component is zinc phosphated or manganese phosphated, preferably by a lab test rather than by appearance. The excerpt provided contains only the question from Prasad Kasar of Pune, India, and no answer text is shown. Because no respondent advice appears in the source, the page does not provide a confirmed testing method or comparison of zinc versus manganese phosphate coatings. The practical takeaway from the available text is simply that the issue is identification of an existing phosphate finish, and the thread excerpt itself does not yet supply a solution. Readers would need the missing replies or an external metallurgical test reference to determine the coating type.
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SUGGESTED PHOSPHATING BOOKS
(many of these are rare; the links will only sometimes work)
“Optimization of Phosphating Process” by Vinod Prasad Sharma (2022)
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“Phosphating of Metals” by Werner Rausch (1991)
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“Phosphating & Metal Pretreatment” by D.B. Freeman (1986)
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“Phosphating of Metals” by Guy Lorin (1974)
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“Electrolytic and Chemical Conversion Coatings” by Biestek & Weber (1972)
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“A Study of Manganese Phosphating Reactions” by Joseph Menke (1971)
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“Preparation of Metals for Painting” by Samuel Spring (1966)
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Amazon
“Continuous Automated Analysis and Control of phosphatizing Baths” by Edward P. Parry (1972)
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AbeBooks, or
Amazon
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Q. I have two components which are phosphate coated, but I want to know which one is zinc or manganese phosphated? Please suggest if there any lab testing process (apart from visual) to confirm it?
The component is phosphate coated in my shop but I want to know through any lab testing.
regards
Prasad Kasar
– Pune India
November 5, 2023