(I can believe that they are not powder coated - I was told that by a refinisher, but in retrospect they might have been trying to justify their $price)
Essentially charged particles are sprayed to a wheel that is charged with an opposing charge and then the whole assembly is baked to cause the powder to flow and bond.
What weakens the wheel, the heating?
i had always heard they were powdercoated too. My experience "trying" to strip them seems to go along with how I understand the shadow chrome.
The outer silver layers came off quite easily with paint stripper. The black layer was a mess, it turned into a 'plasticy' goo that was very reluctant to remove. I brought it to a local shop to strip and powdercoat in black.
I used pacific rims in pittsburg, ca. Iirc, cost was around $125 per wheel. You can do a search for 'black powdercoated oe wheels' or something like that for some pics. They survived several more track events, with R tires after the powdercoating. I'm not sure how that would weaken them either.
Mike
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Mike
91 M5 Alpine White II, Silver Gray 3/90 production
17x8/17x9 M system with PS2, 20mm touring roll bar; Ground Control Coilovers; Confortti Chip, CD43; bmw/nardi blackline steering wheel, 3.8 Cam Gears
08 535i / 6 speed
Space Gray; Gray; Sport/Premium/Nav
00 M5 Ti Silver; Imola/black sportiv --Sold
Engine:
Supersprint Headers, Dinan CAI kit and MAFS, Throttle Bodies, Cams, Ported heads, Exhaust, Custom dinan software, Evosport Pullies, Dinan clutch and lightened flywheel; Ignition solutions plasma coils
Suspension:
Dinan Stage 3 with front and rear Strut Tower Braces, Beastpower Sway bar brackets, Dinan Wheels with 275/285 PilotSport, X5 Thrust arm bushings, Stoptech 355mm 4 piston front, 355mm 2 piston rear brake kit, Dinan 3.45 diff
Interior/Misc:
Eurodash, updated steering wheel, Bluetooth retrofit, Sirius Retrofit, hardwired V1, Widescreen Mk4 nav, M audio retrofit, Ice Link, BSW Stage 1 speaker upgrade, bmw towbar
My stock wheels are at the powder coaters right now (titanium/dark grey colored). I will pick them up Friday. I have had a friend's dad try to bead blast them. The "chrome" came off easy but the black was a different story. The powder coater ended up having to strip them due to the blasting being too difficult and time consuming. I don't understand how this process would harm the wheels. The powder coater said they were powdercoated thus the difficulty.
They are charging me only $198 for the set.
__________________ Thanks, TiM5 SOLD!-2k Imola/Black Sport -Tubi Style regular version -Rogue SSK+WSSR -19x8.5- 19x9.5 ACS type III racing wheels- General exclaim UHP tires 245/35f-275/30r -bimmernav bluetooth kit 2006 Volvo V70R blk sapphire/nordcap-nav,gt,prem,climate,sub,full tint 2007 HHR 2003 Yukon 2004 HD Heritage softail
My stock wheels are at the powder coaters right now (titanium/dark grey colored). I will pick them up Friday. I have had a friend's dad try to bead blast them. The "chrome" came off easy but the black was a different story. The powder coater ended up having to strip them due to the blasting being too difficult and time consuming. I don't understand how this process would harm the wheels. The powder coater said they were powdercoated thus the difficulty.
They are charging me only $198 for the set.
the potential for harm to the wheels has to do with the "baking" involved with powdercoating. Some shops will not use a low temperature baking method and this will destroy the structural integrity of the metal. But I suppose a low baking temperature would be safer. I have just heard so many people recommend against powerdercoating due to the risk of the rim cracking or breaking altogether.
A porsche tuner shop (Devek) in Redwood City recommended that I have my wheels repainted by Wheeltech (www.wheeltechniques.com) in Santa Clara.
I got a quote for $222.50 a wheel for shadow chrome (OEM M color) or $167.5 per wheel for silver (OEM BMW non-M color) from Wheeltech. I haven't had them painted yet.
My wheels were repainted by the 1st owner and are peeling.
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2002 CB Sport, PDC, Sunshades, M-Audio, Ski bag
A porsche tuner shop (Devek) in Redwood City recommended that I have my wheels repainted by Wheeltech (www.wheeltechniques.com) in Santa Clara.
I got a quote for $222.50 a wheel for shadow chrome (OEM M color) or $167.5 per wheel for silver (OEM BMW non-M color) from Wheeltech. I haven't had them painted yet.
My wheels were repainted by the 1st owner and are peeling.
The "www.wheeltechniques.com" doesn't appear valid on my machine ... Have you got a phone number for them?
John.
P.S. Bought new OEM wheels ... still have the old ones (just 18 mos. old) ... BMW NA has agreed to pay for refinishing, if I can find someone who will do it ... and, do it right.
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"The greatest obstacle to discovery is not ignorance; it is the illusion of knowledge."