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Discussion Starter · #1 ·
A friend of mine bought a Felt F1 Sprint Team bike the other day which underneath the team graphics has a very nice naked carbon finish. I bought my Chinese carbon bicycle frame from bicycle999 via eBay early last year and it came in a gloss finish. In addition to seeing the new team bike in person and also having a thing for matte black finishes, I decided to take a stab at sanding off the gloss finish of my frame.

I ended up purchasing a few packages of the thin, "fine" grit, sanding sponges from a local hardware store. I proceeded with sanding my fork as sort of a test, which ended up turning out pretty nicely. The gloss finish came right off without having to sand of much clearcoat and I was overall pretty happy with the results. However, if a few places you could see some scratches left behind from the sanding sponge.

Once I began to work on frame I went out and picked up some automotive rubbing compound. I don't recall the brand, but it was cheap, about $5, and was advertised as removing swirls/scratches from clearcoats, paints, fiberglass etc., at it was also recommended to be used for refinishing dinged up headlights.

The frame took a little while to sand because of all the nooks and crannies in the frame, but once I was done I gave it a good wipe down and then went to town on it with shop rags and the rubbing compound. I've got to say that the results came out looking very nice. Gone is the gloss finish and I am now left with the nice matte/naked carbon look that I was going for. I know this isn't much of a write up, and it definitely is lacking pictures, but I thought I would pass along my experience in case anyone else wasn't totally happy with their gloss finish...
 

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OK, you can't detail this whole long process and describe how great it turned out and how awesome it is and then proceed to not include any pictures of said awesome project. Just sayin'.
 

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I have done the same to an ebay carbon saddle and is in the process of sanding down a frame. The matte look is much much nicer than fat gloss epoxi. Perhaps I'm going to paint the frame though.

<a href="https://s5.photobucket.com/albums/y167/M4420/?action=view&current=R0013569_resize.jpg" target="_blank"><img src="https://i5.photobucket.com/albums/y167/M4420/R0013569_resize.jpg" border="0" alt="Photobucket"></a>
 

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blackstripes said:
A friend of mine bought a Felt F1 Sprint Team bike the other day which underneath the team graphics has a very nice naked carbon finish. I bought my Chinese carbon bicycle frame from bicycle999 via eBay early last year and it came in a gloss finish. In addition to seeing the new team bike in person and also having a thing for matte black finishes, I decided to take a stab at sanding off the gloss finish of my frame.

I ended up purchasing a few packages of the thin, "fine" grit, sanding sponges from a local hardware store. I proceeded with sanding my fork as sort of a test, which ended up turning out pretty nicely. The gloss finish came right off without having to sand of much clearcoat and I was overall pretty happy with the results. However, if a few places you could see some scratches left behind from the sanding sponge.

Once I began to work on frame I went out and picked up some automotive rubbing compound. I don't recall the brand, but it was cheap, about $5, and was advertised as removing swirls/scratches from clearcoats, paints, fiberglass etc., at it was also recommended to be used for refinishing dinged up headlights.

The frame took a little while to sand because of all the nooks and crannies in the frame, but once I was done I gave it a good wipe down and then went to town on it with shop rags and the rubbing compound. I've got to say that the results came out looking very nice. Gone is the gloss finish and I am now left with the nice matte/naked carbon look that I was going for. I know this isn't much of a write up, and it definitely is lacking pictures, but I thought I would pass along my experience in case anyone else wasn't totally happy with their gloss finish...
 

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Discussion Starter · #6 ·
Ohm said:
I have done the same to an ebay carbon saddle and is in the process of sanding down a frame. The matte look is much much nicer than fat gloss epoxi. Perhaps I'm going to paint the frame though.

<a href="https://s5.photobucket.com/albums/y167/M4420/?action=view&current=R0013569_resize.jpg" target="_blank"><img src="https://i5.photobucket.com/albums/y167/M4420/R0013569_resize.jpg" border="0" alt="Photobucket"></a>

That came out really nice, looks just like my frame. :) I've decided to leave my seat and bars gloss; they should match my Chinese carbon wheelset when I receive them.

To all the whiny babies that can't read a thread without pictures, I'll try and get some up later today.
 

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If you sand the gloss clear the carbon wont get uv protection because carbon and the epoxi used to biuld the parts does not have any UV protection. What u can do is to sand it a little bit and look for a flat agent and put that in a polyurethane clear coat so it wont get shiny no more, then will get UV protection again.

Just in case the flat agent i know works with paints and clear is a paint with no color so it should work but always do your homework ok? I havent done this myself in clear coat paint ever, ok?
 

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Discussion Starter · #9 ·
Thanks for your feedback ultraman. However, I was using a super fine grit sanding sponge and believe I was only removing a small portion of the clearcoat. At no time did I have anything other than a fine white dust on my sanding sponge. Wouldn't that indicate that I was only removing clear, and if I wasn't sanding too much/hard, that there would still be a sufficient amount of clear on the carbon to retain a sufficient amount of UV protection?

On the other hand, if I wanted to be really anal, is there something that I could easily apply to the frame that would provide some element of UV protection? I'd been considering applying some type of sealer protectant to the frame simply because it now seems to attract skin oils, etc.
 

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Yes you are right if you sanded a tiny bit you should be ok the question is what to put in there, have no idea if some wax wont go under the clear and affect the fibers also, thats the reason i would re clear, is the only way to get it right. Polyurethane clear gets hard as a rock and even will protect the you against stone nicks, it is the same stuff car use.
 

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I'm certain that the matte finish/surface in itself lessen the transmission of light AND as blackstripes say only a small portion of the top coat is removed.

I would not be surprised if the frame is even more uv-protected with a matte surface. Anybody care to measure what happens?
 

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every 3 seconds, a child dies of hunger. how much did you spend on your bike?
My last bike, a BMC, about 6K. Plus I have another 10 bikes currently in my collection with two more frames getting paint jobs as I write, a Zullo and a Tesch. Thanks for asking. :thumbsup:
 
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