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Anodizing hubs?

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Old 10-11-12 | 03:54 PM
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vjp
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Anodizing hubs?

I am planning on having some parts anodized and I am wondering if I have to have the races pulled out of the hub shells before I have the hubs done? I think that the ano dye will just dye the aluminum hub shells but I wonder if the ferrous races will cause a reaction in the process.
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Old 10-11-12 | 04:10 PM
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I am not sure but the anodizer should know. I am interested in knowing where your having this done as i would love to have a stem, seatpost and maybe brake levers anodized.
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Old 10-11-12 | 04:29 PM
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I will post up the info as I learn more.

Originally Posted by Bianchigirll
I am not sure but the anodizer should know. I am interested in knowing where your having this done as i would love to have a stem, seatpost and maybe brake levers anodized.
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Old 10-11-12 | 04:40 PM
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Yes, it's my understanding that you must remove the steel races. Only aluminum can go into the anodizing tank.

Source: I've been researching anodizing and zinc plating, DIY.
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Old 10-11-12 | 05:20 PM
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Ferrous metals will mess with the electro-mojo. No go.

Last edited by rootboy; 10-11-12 at 06:39 PM.
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Old 10-11-12 | 05:29 PM
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I wonder if you can coat them with some non-conductive material. Some conformal coating or other - say, "liquid electrical tape", spray conformal silicone (one that will dry/polymerize), etc?
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Old 10-11-12 | 05:37 PM
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I've read that forged items do not anodize uniformly. CNC'd hubs are often anodized. I don't see that done so much with forged items (cranks, stems, hubs). I could be wrong, but that is what I've read. Ask your anodizer carefully.
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Old 10-11-12 | 05:57 PM
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Yes you have to remove the races first, no steel bits can go in the tanks.
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Old 10-11-12 | 08:17 PM
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You have to remove any ferrous bits on any aluminum parts that need anodizing. Also The better the alloy of aluminum the better the results. I worked in a plating shop during the summer when I was in high school. It was a very interesting and dangerous place. We did anodizing in blue, red, gold, green and clear. Plus chrome and gold plating.
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Old 10-12-12 | 12:09 AM
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this guy reanodized his stem himself , you may enjoy this thread-its in german...

https://nyx.at/bikeboard/Board/showth...stral-Reloaded
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Old 10-12-12 | 07:56 AM
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Anodizing looks good but what about powder coating? No need to remove anything. It's also very tough stuff and doesn't wear as much as anodizing.
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