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Old 02-04-2007, 10:36 PM   #1
evo 3ater
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Default safe to anodize wheels?

exactly what it says... i dont think it would effect anything but let me know the dealio
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Old 02-04-2007, 10:53 PM   #2
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Yes but the cost of anodizing a wheel is pretty expensive. Not to mention the fact that they will eventually fade.

There are better alternatives such as candy paint colors. There are also powders for powder coating that offer the anodized look and the finish will definitely last much longer since they all receive clear coats.
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Old 02-04-2007, 11:35 PM   #3
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powder coat is the way to go
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Old 02-04-2007, 11:51 PM   #4
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cool i was jw cause i can get good deals on anodizing and was thinking about doing it to my stock bbs wheels if no one buys them
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Old 02-05-2007, 08:04 AM   #5
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I wouldn't accept a simple "Yes" answer and go blindly on your way, but do what you want.

Keep in mind that anodizing can have an impact on the fatigue strength of the material. Make sure to thoroughly research this before actually having your wheels anodized.

The problem is that the anodized outer layer is very hard & brittle. Many times, the brittle outer layer can not accommodate the substrate metal and cracks form in the outer layer. Cracks in the anodizing can also form due to the difference in thermal expansion rates between the hardcoat and the substrate metal. Cracks (crazing) can also occur if the anodizing is not performed properly. If the part being anodized is susceptible to fatigue failure, then the cracks act as stress concentrations and will reduce the fatigue strength of the part. Without knowing all the design details of the STi BBS wheels, it is impossible to determine if the anodizing will have a significant impact on the fatigue strength of the wheel.

This specific application should be reviewed by an anodizing expert to determine if any possible problems may result from the anodizing process.
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Old 02-05-2007, 01:44 PM   #6
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thanks for actually giving me the down low this was the answer i was looking for before i did it
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Old 02-05-2007, 07:35 PM   #7
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what Jac04 said.
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Old 02-18-2007, 02:56 PM   #8
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Im a third generation anodizer and have personally been running anodize for about 6 years. It is true that if the part flexes the anodize will crack, but I don't think a wheel would flex enough for that to be a problem. Anodizing does not effect the strength of the material in anyway, but cast aluminum doesnt come out very good anyway when anodizing. It gets very dull and doesn't dye well. Now if you had some billet aluminum wheels it would look great, but most wheels are cast aluminum and painting or powdercoating is the best option.
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Old 02-18-2007, 03:53 PM   #9
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Quote:
Originally Posted by JustinsWRX View Post
Anodizing does not effect the strength of the material in anyway..
Made as a blanket statement, this is 100% incorrect.
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Old 02-19-2007, 09:03 AM   #10
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And wheels flex a lot. like 2-3mm at the rim vs the hubface.

(and more with some designs i'm sure.)
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Old 02-19-2007, 11:35 AM   #11
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Quote:
Originally Posted by jac04 View Post
Made as a blanket statement, this is 100% incorrect.

Im sorry I guess saying it doesn't effect the strength in anyway was a poor choice of words. A typical cosmetic anodize job will have about .0006" of coating thickness. Now usually depending on what kind of material, you will get a 60/40 split of actual growth vs material pentration. So 40% of that .0006" of coating thickness is actually compromising the strength of the material. Hardly enough to weaken a wheel to the point of it being unsafe.

Last edited by JustinsWRX; 02-19-2007 at 11:49 AM.
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Old 02-19-2007, 12:04 PM   #12
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Quote:
Originally Posted by JustinsWRX View Post
Hardly enough to weaken a wheel to the point of it being unsafe.
Seriously, you need to stop making statements like this if you do not know all of the design details of the wheel in question. Unfortunately, people like to believe what they read and I'm afraid that someone may believe you.

You may also want to do a little research on design for fatigue strength and stress concentration factors. I'll say it one more time: Without knowing all the design details of the STi BBS wheels, it is impossible to determine if the anodizing will have a significant impact on the fatigue strength of the wheel.
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Old 02-19-2007, 12:09 PM   #13
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Quote:
Originally Posted by jac04 View Post
Seriously, you need to stop making statements like this if you do not know all of the design details of the wheel in question. Unfortunately, people like to believe what they read and I'm afraid that someone may believe you.

You may also want to do a little research on design for fatigue strength and stress concentration factors. I'll say it one more time: Without knowing all the design details of the STi BBS wheels, it is impossible to determine if the anodizing will have a significant impact on the fatigue strength of the wheel.
Ok, but I can say 100% unless you have BILLET wheels they will look like garbage. Paint or Powdercoat, anodize is not the way.
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