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Effect of steel in Alodine 1200 solution



2002

If I leave a piece of steel in Alodine tank, it will effect aluminum parts and contaminate solution?

Nadia Sarraf
- Toronto, On, Canada


2002

You are asking about a specific proprietary product, so you should get your answer from the manufacturer of that specific proprietary. However, were you to ask the same question in generic fashion, I would have said that I have actually seen chromate tanks built of plain steel--so it should not be a problem.

Ted Mooney, finishing.com Teds signature
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey


2002

Alodine 1200 and equivalent products such as Iridite 14-2 contain a small amount of complexed ion. So that the solutions will test positively for iron. However a large excess of uncomplexed iron is detrimental to the salt spray results. So it depends on how long the iron object was in the solution.

don baudrand
Don Baudrand
Consultant - Poulsbo, Washington
(Don is co-author of "Plating on Plastics" [affil link to the book on: Amazon or AbeBooks ])

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