Letter 27071

Magnesium Alloy refinish  

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I need to clean then want to re-oxidize a magnesium alloy casted part. Want to recreate the black-grey mottled patina. I dont know if a dichromate or oxidizing agent is appropriate. Dont know what the exact composition of the material is either or what, if any, original finish was on the part. Thanks!

Paul Grappone
consumer auto restoration - Hillsborough, New Jersey

I don't think you'll have any trouble recreating the oxidation. Just polish it and it will oxidize itself in short order I think.

Ted Mooney, P.E.  finishing.com Brick, New Jersey

I want to re-finish it with the dark grey finish that it had originally which I am guessing is a dow1 or dow9 finish originally. The part is from a 1982 porsche.

Who can apply a dow #7 or dow #1 finish to a magnesium alloy part from a car? If so, how much does it cost?

Paul Grappone
- Hillsborough NJ

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