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      09-02-2011, 01:38 PM   #1
JA///MES
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2011 E90 M3 BBS Competition Wheels

Hey guys! Trying to get some feedback about powder coating my BBS competition wheels on my E90. I have heard numerous rumors but mostly that it doesn\'t damage the structural integrity of the rim. This may be on other threads so I apologize, I\'m new at posting and just started upgrading my ///M. Thanks!
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      09-02-2011, 09:26 PM   #2
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I think it is ok if they sand blast the paint,
if they dip the wheels in chemicals to wash of the paint, that will weaken the wheels
well that is what I heard, I could be wrong.
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      09-03-2011, 12:37 AM   #3
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Ran across this buddy... Also the thought of having to fix a curbed or rashed wheel with powder coat sucks... I'd more than likely stick to paint. My 2 cents


Quote:
Originally Posted by lucid View Post
So, I spoke to my materials scientist friend. Too many unkowns for you to have a straight answer. If the wheels were simply forged and not heat treated afterwards in any way, which he thinks is most likely the case, by curing them at 400 degrees F for "long enough" you might indeed weaken them as the the beneficial effects of strain hardening that occurs during the forging process might be reversed. That was going to be my initial response based on the introductory materials science class I took 15 years ago, but here we have it confirmed by an expert. Regardless, a specific answer cannot be reached without knowing if the wheels were heat treated after being forged and how long they will be cured for during powder coating at 400 degrees F.
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      09-03-2011, 01:34 AM   #4
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Linky to EP Thread...
http://www.m3post.com/forums/forumdisplay.php?f=159
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