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Old 10-13-2009, 08:38 PM   #1 (permalink)
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How can I remove surface corrosion from aluminum wheels?

Does anyone know how I can remove some light surface corrosion and discoloration from my '07z polished aluminum wheels?
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Old 10-14-2009, 07:43 AM   #2 (permalink)
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Re: How can I remove surface corrosion from aluminum wheels?

Elbow grease. And note that the way Aluminum oxidizes is by "sacrificial" corrosion. The layer of oxidized aluminum prevents additional oxidation (unlike iron, which will continue to corrode) - normally, the oxidation layer is thin and uniform (think: the way aluminum guard rails corrode to a uniform shade of gray). But when spot corrosion occurs (like, through cracks in a lacquer coating) this almost certainly results in pitting when the oxidation is removed, and if you don't re-treat the freshly exposed aluminum it will simply oxidize again.
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Old 10-14-2009, 11:12 AM   #3 (permalink)
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Re: How can I remove surface corrosion from aluminum wheels?

Some people will think I'm crazy but ask any auto detailer if you want to confirm: Try some 0000 steel wool. It also works great for getting water spots off GLASS i.e. windshields and windows. For heaven't sake don't use it on mirrors. This is assuming the aluminum wheels aren't painted.
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Old 10-14-2009, 12:18 PM   #4 (permalink)
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Re: How can I remove surface corrosion from aluminum wheels?

Take them to a powder coating company and see what they can do for you. Polished aluminum wheels can be a pain in the neck to keep clean. There is a clear Powdercoat on the market now that will make it so all you have to do is clean them with soapy water. A lot of guys are doing this in states that get snow in the winter the durable powder coat makes it so they can run year round without worries.

Last edited by MikesZ06; 01-05-2013 at 10:56 AM.
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Old 11-13-2009, 01:02 AM   #5 (permalink)
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Re: How can I remove surface corrosion from aluminum wheels?

Semi chrome polish and some sweat.
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Old 11-19-2009, 06:33 AM   #6 (permalink)
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Re: How can I remove surface corrosion from aluminum wheels?

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Semi chrome polish and some sweat.
x2

Mothers has good stuff. Worked great on mine.
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Old 12-14-2009, 05:05 PM   #7 (permalink)
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Re: How can I remove surface corrosion from aluminum wheels?

I have a similar problem, and am looking for advice. I had some brake fluid make its way onto my rims from a leaky bleed valve (my fault there - didn't tighten enough ) and didn't notice for a couple days. In that time, the brake fluid did some damage to the rims. It looks like it ate through some sort of protective coating and then went to work on the aluminum. Is this something polish can fix? and would all of the protective coating need to be removed and replaced?



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Old 12-30-2009, 07:43 AM   #8 (permalink)
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Re: How can I remove surface corrosion from aluminum wheels?

You may want to ask your local Porsche service department who they use. The one near me has a guy that drops in periodically and performs magic on blemished wheels.
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Old 12-30-2009, 06:22 PM   #9 (permalink)
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Re: How can I remove surface corrosion from aluminum wheels?

I was under the impression these wheels were clear coated. Polishing a clear coat will not help surface corrosion.

Perhaps someone can confirm they are clearcoated or not.

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Old 01-03-2010, 02:30 PM   #10 (permalink)
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Re: How can I remove surface corrosion from aluminum wheels?

There is definitely a coating of some sort on the rim. It was peeling around where the brake fluid ate through it.
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Old 01-03-2010, 08:03 PM   #11 (permalink)
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Re: How can I remove surface corrosion from aluminum wheels?

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Old 01-20-2010, 08:57 AM   #12 (permalink)
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Re: How can I remove surface corrosion from aluminum wheels?

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Originally Posted by Mokkan View Post
There is definitely a coating of some sort on the rim. It was peeling around where the brake fluid ate through it.

I was looking at a 2006 the other day with optional polished aluminum wheels. Did they come with a clearcoat?
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Old 07-01-2013, 08:58 AM   #13 (permalink)
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Re: How can I remove surface corrosion from aluminum wheels?

I also unfortunately have surface corrosion from brake dust on the wheel wells of my "04 Z16. Car was in storage. Not being able to fully get to clean them properly, I will be jacking up the car and taking the wheels off one by one to clean them. What is the best way to clean them? 0000 steel wool and Mothers Cleaner? What should be used to protect them from corroding again once clean?
Thanks!
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