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| Metal Polishing Questions Discussion Board For metal polishing questions. |
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10-26-2002, 06:24 PM
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Why is this metal turning a gray?
I attempted to polish my intercooler. It looked like the same metal that my turbo was made out of so i hit it with the black, brown, and then white. It gets the mirror finish but it's not chrome looking. It looks like i painted it gray. I am lost here. What the deal?
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10-28-2002, 06:26 PM
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Who's the manufacturer of this part? Would they know what it is made of?
It could be a strange alloy of aluminum.
__________________
-- Mike Caswell Caswell Inc http://www.caswellplating.com Need Support? Visit our online support section at http://support.caswellplating.com Have A Web Site? Why not join our affiliate program and earn 15% of all sales. Join at http://www.caswellplating.com/affiliate.htm
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10-28-2002, 08:59 PM
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It could be Pot Metal (Zinc Die Cast)
Place a drop of battery acid on the part in a hidden area. If it fizzes violently, it's Pot Metal.
__________________
-- Mike Caswell Caswell Inc http://www.caswellplating.com Need Support? Visit our online support section at http://support.caswellplating.com Have A Web Site? Why not join our affiliate program and earn 15% of all sales. Join at http://www.caswellplating.com/affiliate.htm
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10-30-2002, 06:32 PM
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ok apparently it's 536 aluminum that's painted. I just took some medium grit papaer to it and it worked. Now is there something that i can just brush or pour onto it that will take it off? I can't get into some of the spots with the paper.
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10-31-2002, 05:19 PM
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Any paint removing liquid (paint stripper) should work.
__________________
-- Mike Caswell Caswell Inc http://www.caswellplating.com Need Support? Visit our online support section at http://support.caswellplating.com Have A Web Site? Why not join our affiliate program and earn 15% of all sales. Join at http://www.caswellplating.com/affiliate.htm
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