Results 1 to 14 of 14
  1. #1
    Dutchman
    Reputation: dutchman59's Avatar
    Join Date
    Sep 2011
    Posts
    66

    Carbon frame spray paint removal

    The Stealth look is not for me. I want to restore the bike to original look. Previous owner used matt black spray paint on everything. What can I us to remove it? Do not want to damage the carbon or the original paint and decals. IS there a wipe or something?
    Pain is temporary but Pride is forever.

  2. #2
    mtbr member
    Reputation:
    Join Date
    Aug 2004
    Posts
    109
    He should have used Plastidip...

  3. #3
    mtbr member
    Reputation:
    Join Date
    Nov 2016
    Posts
    2,352
    Quote Originally Posted by dutchman59 View Post
    The Stealth look is not for me. I want to restore the bike to original look. Previous owner used matt black spray paint on everything. What can I us to remove it? Do not want to damage the carbon or the original paint and decals. IS there a wipe or something?
    If it is poorly sealed a medium, maybe even fine, would use coarse as a last resort, clay bar with plenty of lube might take it off. Have seen it used effectively on spray paint overspay on autos moths after the fact.

    Sent from my SM-N950U using Tapatalk

  4. #4
    Dutchman
    Reputation: dutchman59's Avatar
    Join Date
    Sep 2011
    Posts
    66
    Actually used Dupli-Color matt black
    Pain is temporary but Pride is forever.

  5. #5
    mtbr member
    Reputation:
    Join Date
    Nov 2016
    Posts
    2,352
    Quote Originally Posted by dutchman59 View Post
    Actually used Dupli-Color matt black
    It might work. I've never tried it on that application though. Any big box or auto store should have a kit.

    Sent from my SM-N950U using Tapatalk

  6. #6
    mtbr member
    Reputation: LyNx's Avatar
    Join Date
    Oct 2004
    Posts
    23,490
    And you're sure this bike wasn't stolen? That's normally when I'd see something like a good carbon frame sprayed all black, when thieves try to disguise stolen property.
    One day your life will flash before your eyes, will it be worth watching??

  7. #7
    mtbr member
    Reputation: Lone Rager's Avatar
    Join Date
    Dec 2013
    Posts
    4,878
    Spray paint often wipes off easily with solvent, like acetone or lacquer thinner. This wont' damage the carbon providing you don't soak it in a tub of it for days. Get some rags, wet and wipe.
    Do the math.

  8. #8
    Dutchman
    Reputation: dutchman59's Avatar
    Join Date
    Sep 2011
    Posts
    66
    Quote Originally Posted by LyNx View Post
    And you're sure this bike wasn't stolen? That's normally when I'd see something like a good carbon frame sprayed all black, when thieves try to disguise stolen property.
    I am sure. I have his address, cell and e-mail address. He just wanted to make it stealth.
    Pain is temporary but Pride is forever.

  9. #9
    EAT MORE GRIME
    Reputation: 127.0.0.1's Avatar
    Join Date
    Nov 2013
    Posts
    3,907
    leave it alone. any solvent or sanding is further risk to the frame.

    Acetone will eat right thru epoxy resin and cause delamination in the composite.
    "Put your seatbelt back on or get out and sit in the middle of that circle of death." - Johnny Scoot

  10. #10
    mtbr member
    Reputation: MTBforlife's Avatar
    Join Date
    Apr 2009
    Posts
    193
    You best bet is to get the frame cerakoted. Many gun shops do cerakoting, they will do a lite walnut blast to even out and produce a surface that the cerakoting will stick too.

  11. #11
    mtbr member
    Reputation:
    Join Date
    Nov 2016
    Posts
    2,352
    Quote Originally Posted by 127.0.0.1 View Post
    leave it alone. any solvent or sanding is further risk to the frame.

    Acetone will eat right thru epoxy resin and cause delamination in the composite.
    Clay bar poses absolutely zero risk to the frame.

    Sent from my SM-N950U using Tapatalk

  12. #12
    mtbr member
    Reputation: Lone Rager's Avatar
    Join Date
    Dec 2013
    Posts
    4,878
    Quote Originally Posted by 127.0.0.1 View Post
    leave it alone. any solvent or sanding is further risk to the frame.

    Acetone will eat right thru epoxy resin and cause delamination in the composite.
    No. It won't.

    I would have "delaminated" a good number of carbon tubular rims removing old adhesive if that were the case. Epoxy is not like glues or paint that have solvent in them and that set up as the solvent evaporates. Epoxy cures via a chemical reaction that cause covalent bonds to form between the molecules. There's no solvent involved. Epoxy occupies the same volume and weighs the same before and after curing whereas solvent based glues and paints shrink and weigh less after the solvent evaporates.
    Last edited by Lone Rager; 12-20-2017 at 05:29 AM.
    Do the math.

  13. #13
    mtbr member
    Reputation:
    Join Date
    Jan 2009
    Posts
    1,173
    Quote Originally Posted by Lone Rager View Post
    No. It won't.

    I would have "delaminated" a good number of carbon tubular rims removing old adhesive if that were the case. Epoxy is not like glues or paint that have solvent in them and that set up as the solvent evaporates. Epoxy cures via a chemical reaction that cause covalent bonds to form between the molecules. There's no solvent involved. Epoxy occupies the same volume and weighs the same before and after curing whereas solvent based glues and paints shrink and weigh less after the solvent evaporates.
    Pretty much this. Here's a few ways to for sure to destroy a carbon frame, boil it in water for an hour or so. That causes the epoxy to lift away from its bonds. Then there's chemicals like sulfuric acid, that's always a winner and some others that I can't pronounce. Then there's good old heat, 400f or so. And there is also thermal shock, rapid heating then cooling stresses the epoxy causing joint seperation, etc. All these methods are sure fire catastrophic ways to destroy carbon/epoxy. Acetone, not so much.

    That said, I'd leave the paint. Getting it down to the epoxy finish is hard in that its hard to know how much you took off and you don't want to take any off. The cured resin is harder than any paint in the world, and in trying to remove the paint you could damage or remove the super hard resin. If it were me, I'd just prep the frame for a fresh coat of paint and clear.

  14. #14
    mtbr member
    Reputation:
    Join Date
    Mar 2015
    Posts
    458
    Extreme weight weenies have been known to remove the paint off brand new carbon frames to save those precious grams! If you are determined to remove the paint I would ask for advice on the weight weenie page.
    Kes

Similar Threads

  1. Replies: 8
    Last Post: 12-30-2015, 10:21 AM
  2. Does anyone 'spray paint' their lights?
    By deesta in forum Lights DIY - Do It Yourself
    Replies: 27
    Last Post: 03-04-2013, 05:08 AM
  3. Spray Can Paint Job
    By elcoolio1 in forum Tooltime
    Replies: 10
    Last Post: 08-19-2011, 12:24 PM
  4. Anyone carry pepper spray/bear spray in the wilderness
    By shanet74 in forum General Discussion
    Replies: 16
    Last Post: 06-13-2011, 07:50 PM
  5. Paint removal on an aluminum frame
    By jekyll2003 in forum Frame Building
    Replies: 4
    Last Post: 01-04-2011, 09:10 AM

Members who have read this thread: 1

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

THE SITE

ABOUT MTBR

VISIT US AT

© Copyright 2019 VerticalScope Inc. All rights reserved.