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Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

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Old 05-20-05, 10:07 AM   #1
Leviathan
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Sandblasting/Powdercoating

I want to have a chromed steel frame powdercoated. The powdercoater I talked to told me that powdercoat wont adhere to chrome very well and that sandblasting chrome is out of the question. Has anyone ever head either of these things? Any suggestions?
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Old 05-20-05, 10:15 AM   #2
dokushoka
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You're pretty much SOL on this one. You could always get the bike painted instead...
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Old 05-20-05, 10:45 AM   #3
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can you paint over chrome? Why is sandblasting chrome a no-no?
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Old 05-20-05, 10:46 AM   #4
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to liquid paint chrome i know you have to apply a self etching primer before your color. that primer has a sort of acid in it that slightly eats into the chrome and roughs it up so the primer will stick to it. perhaps they can do that before powdercoating it? i think powdercoating only goes to 320ish degrees. i would imagine most primers could handle that temp.
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Old 05-20-05, 10:58 AM   #5
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Yes, you can paint over chrome, but as the powdercoating professionals instructed you, you can't powdercoat over it very well. Talk to a paint shop. I think a light sanding followed by a self etching primer will prepare the surface well for paint.
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Old 05-20-05, 03:06 PM   #6
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My powdercoat guy told me powdercoating over chrome is possible, with the proper surface prep. You might want to shop around for a second or third opinion.
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Old 05-20-05, 04:44 PM   #7
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Guys , there is two kinds of Chrome on a bike . one is a bike that is fully chrome and will never have paint on it..IEld Atala. The other is a frame that has been painted and chrome underneath it. it is not highly polished or anything else.

The latter may work since it was aleady prep for painting already. I want to do the same with my Keirin frame ( the paint stripped off by Keirin rider already).

S/F,
CEYA!
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