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Old 2008-10-19, 12:05 AM   #1
beeper
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Powdercoat over chrome?

This question is in regard to my unicycle, but could be handy in other fields, so i'm just asking here.

Is it possible to powdercoat over chrome?

I realize you can't paint it otherwise, and was just curious. I wanted to paint my nimbus frame.
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Old 2008-10-19, 12:12 AM   #2
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Quote:
Originally Posted by beeper View Post
This question is in regard to my unicycle, but could be handy in other fields, so i'm just asking here.

Is it possible to powdercoat over chrome?

I realize you can't paint it otherwise, and was just curious. I wanted to paint my nimbus frame.
No. but is is possible to remove chrome plating with some Iron wool and time. Mastero8 wrote a great article on the fine points of doing so.
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Old 2008-10-19, 08:56 AM   #3
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Quote:
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No. but is is possible to remove chrome plating with some Iron wool and time. Mastero8 wrote a great article on the fine points of doing so.
Actually, I've heard you can. And you can paint over it also, but I think it'd be worth atleast making it rough before hand so the paint sticks better.

I think it'd be worth searching it coz I'm pretty sure there's other topics about it.
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Old 2008-10-19, 03:19 PM   #4
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powder coating over chrome is done all the time with colors that are called candy coats. You can also use normal colors too. The surface does need to roughed up a bit - professional powdercoaters use an acid to etch the surface so that the paint bonds better.
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Old 2008-10-19, 08:22 PM   #5
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yes painting/PCing over chrome is certainly used professionally in certain areas. The surface does need to be rough, painting over polished chrome will fall off quickly. A little work with some fine sandpaper will sort it. You need to bear in mind that ou are now painting chromium, rather than steel or whatever the base metal is, and your choice of paint needs to reflect this.
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Old 2008-11-01, 03:13 AM   #6
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what is powder coating i know it a way of painting but how is it done
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Old 2008-11-01, 06:11 AM   #7
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Powder-coating is a way of "painting" something. It uses a dry powder instead of a liquid paint. Usually the use electrolyses to get the powder to stick then heat the object up to melt the powder into a film that covers the object. The result is usually much more durable than a conventionally painted surface.
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Old 2008-11-01, 02:00 PM   #8
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For spray painting I always recommend to leave the chrome on, so that if it gets chipped you will still have a protective layer of chrome.

You are wanting to powdercoat which will be a tougher material but it may be worth leaving the chrome and doing a thinner layer of powdercoat.
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Old 2008-11-01, 04:52 PM   #9
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My powder-coated Yuni Muni frame just survived another truck getting totaled off with some cosmetic damage.

There are now a few patches where the powder coat was rubbed off and it looks to me like the chrome that was under it is either gone or pitted/textured.

I was sort of curious if they just powder-coated over the chrome or removed it some how. I guess I will wait and see if it rusts at all in the exposed areas to tell me if it is bare steel or just textured chrome.
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Old 2008-11-24, 04:07 AM   #10
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Hello, We are the powder coating shop that coated the Red, White & Blue Coker frames for RTL 2008. Chrome can be powder coated over usually without having to be removed. The exception is if the it was a poor plating job and the chrome is already peeling off or it tries to bubble or peel at the curing temperature for the powder coat. Candie colors can be applied right over the chrome without any etching or scuffing for an awesome effect. If opaque colors are being used then the surface can be media blasted to etch the surface for even better adhesion. Hope this helps.

Here are some pics of the frames at our shop before they were assembled for RTL. These were a custom fade of candy blue and red over a pearl white with a Starlight Clear.















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Old 2008-11-27, 08:10 AM   #11
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excellent post auto

If I understand you correctly, only high quality chrome can be powder coated over. Makes sense to me, how could a powder paint job on top of peeling or pitted chrome get to tight metal so it can last ?

I have a chromed radial 360 that's showing a bit of rust. I really should wax it, retroactively, for the last year.

So , for chrome, is it wax and wait ? Then if you are lazy like me and the chrome goes all dodgy, it will need a sand blast to clean steel to get a good powder coat ?
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Old 2008-12-01, 04:50 AM   #12
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If I understand you correctly, only high quality chrome can be powder coated over. Makes sense to me, how could a powder paint job on top of peeling or pitted chrome get to tight metal so it can last ?
Your correct for a good quality powder coating job it will only be as good as the substrate it is applied over.

I have a chromed radial 360 that's showing a bit of rust. I really should wax it, retroactively, for the last year. LOL we all wish we cold have done that before.

So , for chrome, is it wax and wait ? Then if you are lazy like me and the chrome goes all dodgy, it will need a sand blast to clean steel to get a good powder coat ? If I have a part with questionable chrome I will put it in the oven and run it through a cure cycle to see how the chrome holds up if it does well then we media blast it and coat it if needed. A good chrome plating can be clear coated with clear powder so the rust then becomes a non issue.
Hope that helps.

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Old 2008-12-02, 02:57 AM   #13
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We just did this this weekend. My brother-in-law is a Harley Davidson mechanic in Iowa and does the powdercoating on their aftermarket stuff. A lot of it is chrome. He powdercoated a chrome trials frame for one of my sons and it turned our great. I will post pictures soon.

You should know that powder coating over chrome will produce a completely different color than powdercoating raw metals.
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