Go Back   986 Forum - for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Boxster General Discussions

Reply
 
LinkBack Thread Tools Display Modes
Old 04-27-2017, 04:34 AM   #1
Registered User
 
Join Date: Apr 2017
Location: Spring Grove, PA
Posts: 7
Wheels changed color

Hi, I recently purchased a 2002 Boxster S and it has some slots on the wheels that won't clean off. Since they're aluminum, I thought a quick polish would sort it out. When I began to polish, the rag immediately blackened, but the wheel was gray and wouldn't wipe off, or polish any brighter. Any ideas what happened or how to fix it (hopefully something other than making them all gray)?



pRS317 is offline   Reply With Quote
Old 04-27-2017, 06:20 AM   #2
2003 S, Arctic Silver, M6
 
paulofto's Avatar
 
Join Date: Oct 2014
Location: Winnipeg, MB, Canada
Posts: 1,064
Garage
Quote:
Originally Posted by pRS317 View Post
Hi, I recently purchased a 2002 Boxster S and it has some slots on the wheels that won't clean off. Since they're aluminum, I thought a quick polish would sort it out. When I began to polish, the rag immediately blackened, but the wheel was gray and wouldn't wipe off, or polish any brighter. Any ideas what happened or how to fix it (hopefully something other than making them all gray)?
Aluminum is susceptible to oxidation if exposed to strong acidic or alkaline cleaners and polishes unless the surface is anodized. What polish did you use? I recommend getting a cleaner and a polish specific for use on aluminum.
paulofto is offline   Reply With Quote
Old 04-27-2017, 07:11 AM   #3
Registered User
 
Join Date: Apr 2009
Location: MD
Posts: 268
Garage
Are you sure these wheels aren't painted with a clear coat. Unpainted aluminum will tarnish rather rapidly. As far as I know Boxsters all had painted or clear coated wheels from the factory. My BBS wheels have clear coat over polished metal wheel lips and painted/clear coated centers.

Rather than a metal polish I'd recommend a wheel cleaner (non acidic) and a coarse sponge, assuming that you haven't damaged the finish with the polish

CB

Last edited by Cbonilla; 04-27-2017 at 07:16 AM.
Cbonilla is offline   Reply With Quote
Old 04-27-2017, 07:55 AM   #4
Registered User
 
Join Date: May 2015
Location: Greater Seattle, WA
Posts: 534
More/better pictures would help us better understand what you're working with here. Some factory Porsche wheels are chrome plated (it was an available option), but it's not clear what you're working with here. The reaction to the metal polish (you didn't state what kind of polish you were using), suggests potentially bare aluminum wheels, which is really rare for original equipment wheels, as it's labor intensive to keep looking good (requiring periodic polishing to remove tarnish).

I'm not sure if chrome plating on wheels, if that's what you've got, could potentially react in the way you are describing to the unknown "polish" you are using. Generally speaking, chrome is pretty durable and chemical resistant.
__________________
2001 Boxster

Last edited by jakeru; 04-27-2017 at 07:58 AM.
jakeru is offline   Reply With Quote
Old 04-27-2017, 09:29 AM   #5
Registered User
 
Join Date: Apr 2017
Location: Spring Grove, PA
Posts: 7
I used an aluminum polish and a chrome polish. Both quickly reacted the same way with the wheel with gentle application. It seemed to be the same reaction that I've seen in the past with aluminum. I'm guessing that since it was a painted rim, whatever weak coating it had is pretty much erased. Given that, would powder coating be the best route? I'd prefer to that to painting, provided the powder coating process doesn't damage the wheel.

pRS317 is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -8. The time now is 05:21 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page