So I had this really cool idea to powder coat my seat post . . .
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So I had this really cool idea to powder coat my seat post . . .
annnnd it looks GREAT. (Won't fit back into the frame now but damn it looks good!)
EEeeyeah.
Never really considered how thick a powder coat sits on top of metal. Anyhow, I'm thinking perhaps a chemical or something I could just dip it in to thin out the portion going into the frame?? Thoughts?
EEeeyeah.
Never really considered how thick a powder coat sits on top of metal. Anyhow, I'm thinking perhaps a chemical or something I could just dip it in to thin out the portion going into the frame?? Thoughts?
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Your problem is that seatpost frame fits are pretty dam precise. On the order of plus or minus .002". That's less than the thickness of any paint, so you're going to strip back to bare metal or very close to that for the part that fits into the frame.
If you know the exact height you want the post to be, you might put a hose clamp around the post at that height exactly to protect the paint and get a good line. Then you can sand off the area below using emery cloth strips as if shining shoes. Keep going until you just begin to see bare metal and you should be OK.
If you know the exact height you want the post to be, you might put a hose clamp around the post at that height exactly to protect the paint and get a good line. Then you can sand off the area below using emery cloth strips as if shining shoes. Keep going until you just begin to see bare metal and you should be OK.
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Your problem is that seatpost frame fits are pretty dam precise. On the order of plus or minus .002". That's less than the thickness of any paint, so you're going to strip back to bare metal or very close to that for the part that fits into the frame.
If you know the exact height you want the post to be, you might put a hose clamp around the post at that height exactly to protect the paint and get a good line. Then you can sand off the area below using emery cloth strips as if shining shoes. Keep going until you just begin to see bare metal and you should be OK.
If you know the exact height you want the post to be, you might put a hose clamp around the post at that height exactly to protect the paint and get a good line. Then you can sand off the area below using emery cloth strips as if shining shoes. Keep going until you just begin to see bare metal and you should be OK.
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If you start with a medium coarse grit, and work to finer ones, you'll be amazed at how fast it can go. The hose clamp will give you a nice clean line without the need to be very careful.
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Just because I'm tired of arguing, doesn't mean you're right.
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i'm doing something similar right now but with the small round pegs on a decauler.
It should be relatively simple actually:
- get a few different sandpapers (medium to fine-grit)
- cut a strip of the coarsest to be about the size you need
- put it in the palm of you hand, grit out
- grip the post with that hand
- rotate the post with the other hand
- do that for a while
- do it for a while longer
- ... just a little longer
i'd definitely recommend getting another seatpost and using it to measure the correct height. live with it for a week or so before sanding the paint off your painted one.
sounds pretty cool, did they paint the top part where the saddle attaches? you might have fit problems there too
It should be relatively simple actually:
- get a few different sandpapers (medium to fine-grit)
- cut a strip of the coarsest to be about the size you need
- put it in the palm of you hand, grit out
- grip the post with that hand
- rotate the post with the other hand
- do that for a while
- do it for a while longer
- ... just a little longer
i'd definitely recommend getting another seatpost and using it to measure the correct height. live with it for a week or so before sanding the paint off your painted one.
sounds pretty cool, did they paint the top part where the saddle attaches? you might have fit problems there too
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i'm doing something similar right now but with the small round pegs on a decauler.
It should be relatively simple actually:
- get a few different sandpapers (medium to fine-grit)
- cut a strip of the coarsest to be about the size you need
- put it in the palm of you hand, grit out
- grip the post with that hand
- rotate the post with the other hand
- do that for a while
- do it for a while longer
- ... just a little longer
i'd definitely recommend getting another seatpost and using it to measure the correct height. live with it for a week or so before sanding the paint off your painted one.
sounds pretty cool, did they paint the top part where the saddle attaches? you might have fit problems there too
It should be relatively simple actually:
- get a few different sandpapers (medium to fine-grit)
- cut a strip of the coarsest to be about the size you need
- put it in the palm of you hand, grit out
- grip the post with that hand
- rotate the post with the other hand
- do that for a while
- do it for a while longer
- ... just a little longer
i'd definitely recommend getting another seatpost and using it to measure the correct height. live with it for a week or so before sanding the paint off your painted one.
sounds pretty cool, did they paint the top part where the saddle attaches? you might have fit problems there too
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I would just figure out how much post you want showing and put some tape around it at that point then sand down the powder coat below till it slides in.
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annnnd it looks GREAT. (Won't fit back into the frame now but damn it looks good!)
EEeeyeah.
Never really considered how thick a powder coat sits on top of metal. Anyhow, I'm thinking perhaps a chemical or something I could just dip it in to thin out the portion going into the frame?? Thoughts?
EEeeyeah.
Never really considered how thick a powder coat sits on top of metal. Anyhow, I'm thinking perhaps a chemical or something I could just dip it in to thin out the portion going into the frame?? Thoughts?
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Gasket remover seems to work well enough. Just mask off the areas in which you don't want the powdercoat stripped.
https://www.choppersurplus.com/global...ercoating.html
https://www.choppersurplus.com/global...ercoating.html
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I literally just got my frame back yesterday from the powder coater and unwrapped it. Aside from these minor glitches (er ah, oversights) I couldn't be more pleased.
Last edited by Sundance89; 04-27-11 at 09:17 PM.