How does one paint carbon fiber?
I know this isn't exactly frame building. But, I figured you guys would have the answer over any other sub-forum.
http://photos-e.ak.fbcdn.net/photos-...68_3602560.jpg I have a monocoque carbon fiber frame exactly like the one in this photo. I'd like to have it painted. Would standard local powder coat and bake work? Or is there a special process or materials? Thanks, C |
You can't powder coat carbon. You have to heat the powder in an oven to cure it and it reaches temperatures beyond the tolerances of the frame's epoxy resin (it'll melt).
Normal paint will work fine though. Prep sand the frame, prime it, paint it, clear coat. Search through Dr. Delton's posts for excellent tips on how to properly apply the above. |
Thanks!
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Originally Posted by AllenG
(Post 9617608)
You can't powder coat carbon. You have to heat the powder in an oven to cure it and it reaches temperatures beyond the tolerances of the frame's epoxy resin (it'll melt).
Normal paint will work fine though. Prep sand the frame, prime it, paint it, clear coat. Search through Dr. Delton's posts for excellent tips on how to properly apply the above. |
I was reading somewhere that you CAN powder coat carbon fiber, and that larger industrial coating companies do it regularly. It involved a person actually being IN the oven. I believe that its a lower temperature, and they spray the piece once its warm enough, and the powder actually cooks as its flying through the air. Its sounds a little wishy washy to me, because I thought the piece had to be grounded, or negatively charged. I'm not sure which.
I could be completely wrong too, I just thought I'd throw it out there. Besides, that would probably cost BIG bucks. |
What you are painting, to be mister picky, is epoxy, or in the case of a finished frame, whatever stuff they put over epoxy. In some cases it might be a different resin system, though I like epoxy. There are many products designed to finish epoxy, including sprayable epoxy paints. Yacht finishing systems are available, and car paints of course. Some of these are brushable. I refinished parts of my trimaran this summer and the brushed on awlgrip was very hard to grind through. Tough stuff.
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Originally Posted by jr-14
(Post 9650335)
I was reading somewhere that you CAN powder coat carbon fiber, and that larger industrial coating companies do it regularly. It involved a person actually being IN the oven. I believe that its a lower temperature, and they spray the piece once its warm enough, and the powder actually cooks as its flying through the air.
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While the ingenuity of different coatings is astounding, applying any of these would be monumentally expensive (I'm guessing). Just not worth it on a bike. A yacht, yes, a bike no. Not for me anyway. To quote someone from somewhere, K to the R to the ylon.
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