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painting chrome parts

  • Thread starter Thread starter scrapper
  • Start date Start date
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scrapper

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I was thinking about painting fenders on my bike but not sure what to do with chrome. I was wondering if it will sand with a 1/4 sheet sander or would it have to be sandblasted. Would it be a good idea to completely remove all chrome or just remove any rust and scuff it up. I could use any help. It will be rattle can painted. I have spray gun but father-in-law is only guy that has used it. I may try but paint stuff seems expensive compaired to cans. I have also seen posts where people hace painted some aluminum parts. Is there any difference in the paint used? Thanks for any help
 
Thanks, I am going to try it. I will call a crome shop to see if they will take the acid.
 
The acid is neutralized with baking soda..its the chromium thats environmentally toxic. Ive never tried it myself..please report on the experience..before and after pics.
 
Chrome platers will dechrome for a fee.The diy method referred to above does require careful disposal of the acid but as the chrome is electrolytically removed the chromium ions should all be plated onto the scrap copper electrodes.Probably best not to assume it is though and treat the waste accordingly as chromium compounds can be incredibly toxic to all living things
 
scrapper said:
It will be rattle can painted.
Click to expand...

Unless it's peeling off like old house paint, I'd spare myself the removal effort and just sand it and spray it. I did this to a front fender that was speckled in rust spots a year ago, and it's holding up fine so far. Etching primer first.
 
I've tried sanding chrome, and it just doesn't work. I also tried the acid dipping method, too. The chrome shop said it would work, did it for free, but the paint flaked off almost immediately. The chrome is just too hard. Sand blasting the parts is the solution. It's cheap and it leaves the finish smooth and yet with enough "tooth" for the primer to stick to. I've never once had a sand blasted part flake. I've done fenders, headlight ears, and spoke wheels (especially) with great success.
 
What media didm you use Larry? Ive tried regular glass beads and all it did was make the chrome foggy looking and did nothing of any effect.
 
Aluminum oxide, or maybe slag blast media will work. You need something with sharp/hard edges to rough up chrome, which itself is quite hard.


I blasted then painted a chromed bicycle frame (used play sand). Some of the chrome flaked during the blasting process, but the chrome that stayed put provided a good painting surface once roughed up.
 
Sand it, start course and work your way to about a 420. Must epoxy primer, and paint it before the primer sets up(like you would with a finish paint)
I've done old chrome truck bumbers with no problems at all.
 
chuck hahn said:
What media didm you use Larry? Ive tried regular glass beads and all it did was make the chrome foggy looking and did nothing of any effect.
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Ya know, Chuck..I'm not sure. It was a friend's blasting cabinet that I used, but it was pretty coarse sand, not glass beads or walnut shells. It left the surface with no shine what-so-ever, and yet smooth enough to spray primer right on to. It worked great.
 
I use my bead blaster cabinet with coarser media like black diamond available at tractor supply. I've powder coated right afterwards with great results and it has lasted years with no peeling
 
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