Advertise on Bikeforums.net



User Tag List

Results 1 to 12 of 12
  1. #1
    Senior Member
    Join Date
    Jun 2003
    Location
    Arnhem, The Netherlands
    Posts
    88
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Frame rust: total loss?

    My precious old Chesini frame is starting to show some rust on the horizontal and vertical chainstay's. I'm a bit worried this will be the end of my frame. The paint in these areas is also damaged quite badly and flakes off very easily. Is there a way to save my frame without stripping the paint entirely? I really don't want to remove the paint because it is what makes the bike so special. I added some pictures for you to see!
    Attached Images Attached Images
    • File Type: jpg 1.jpg (95.2 KB, 151 views)
    • File Type: jpg 2.jpg (97.4 KB, 139 views)
    • File Type: jpg 3.jpg (97.0 KB, 145 views)

  2. #2
    Senior Member Retro Grouch's Avatar
    Join Date
    Feb 2004
    Location
    St Peters, Missouri
    My Bikes
    Rans Enduro Sport, Hase Kettweisel Tandem, Merin Bear Valley beater bike
    Posts
    23,582
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Erik
    My precious old Chesini frame is starting to show some rust on the horizontal and vertical chainstay's. I'm a bit worried this will be the end of my frame. The paint in these areas is also damaged quite badly and flakes off very easily. Is there a way to save my frame without stripping the paint entirely? I really don't want to remove the paint because it is what makes the bike so special. I added some pictures for you to see!
    If the paint is flaking off easily, I think that it's done.

    I don't know about the Netherlands, but in the US there are a few bicycle refinishing specialty firms that can restore your bike's finish, complete with decals, to as-new condition. They do an excellent job, but they don't come cheap.

  3. #3
    me have long head tube TallRider's Avatar
    Join Date
    Oct 2005
    Location
    Chapel Hill, NC
    Posts
    4,089
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    The paint job itself might be done, especially in that area. But it doesn't appear that the rust has much compromised the steel itself in that area.

    I suspect you can find specialty bike-paint-refinishing places, or auto-body shops, that can handle this.

    Alternately, you might do things yourself. It appears that the rust and flaking are in not-so-visible places, and you could sand down that area (getting rid of rust, and smoothing the merger between bare steel and currently okay paint), hit it with some primer, and then some cover paint whose color is not too different from the current paint job. The area where the stays connect to the bottom bracket is rarely very noticeable.

  4. #4
    Senior Member
    Join Date
    Oct 2005
    Posts
    5,426
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Thats just surface rust which from the photos, does not look like it affects the structural integrity at all. I don't think theres any other fix than to sandblast and repaint. It looks like its a bad paint prep job that is making the paint flake off.
    Il faut de l'audace, encore de l'audace, toujours de l'audace

    1980 3Rensho-- 1975 Raleigh Sprite 3spd
    1990s Raleigh M20 MTB--2007 Windsor Hour (track)
    1988 Ducati 750 F1

  5. #5
    Senior Member
    Join Date
    Aug 2005
    Location
    Pittsburgh, PA
    My Bikes
    '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
    Posts
    25,260
    Mentioned
    5 Post(s)
    Tagged
    0 Thread(s)
    If the rust is mostly external, your frame is ok and the "damage" is mostly cosmetic. A repaint or cleanup and local touchup will be adequate If the rust has penetrated from the inside of the tubes, the frame is probably due for the discard pile.

    Take a sharp nail or similar and poke around the chipped areas. If the metal is sound in those areas, you can safely restore the frame. if you feel soft spots or go through the tube wall, kiss the frame goodby.

  6. #6
    Eschew Obfuscation! enduro's Avatar
    Join Date
    Oct 2004
    Location
    over here!
    My Bikes
    2005 Rocky Mountain ETSX, Surly Crosscheck, 2000 Enduro Expert (sold), 1999 Rockhopper, 1984 Trek 520 (STOLEN-but recovered!), $7 rigid MTB from a police auction (broken, then stolen)
    Posts
    591
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Pull the BB and check the inside of the chainstays for serious rust; a little surface rust isn't serious but now would be a good time to apply a rust preventative.
    Hates M &M's because they are so hard to peel.

  7. #7
    Senior Member Michigander's Avatar
    Join Date
    May 2005
    My Bikes
    Giant ATX 1200, Schwinn Peleton
    Posts
    1,727
    Mentioned
    10 Post(s)
    Tagged
    0 Thread(s)
    I know it sucks, but my best advise is that the only smart thing to do in the long term is to have it refinished. The cheapest way to go is to find somewhere in your area that does commercial acid dips. That will remove all paint and rust and cost 20 bucks or so. Then you can refinish it youself.
    Bring back the Sig Test!


    (\__/)
    (='.'=)
    (")_(")

  8. #8
    "not enough rage" Old Breadbutt's Avatar
    Join Date
    Sep 2004
    Location
    Oakland
    My Bikes
    Old ****ed up Cannondale roadie, peice o **** Gitane as a beater, and I use my Nishiki for bike camping
    Posts
    273
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I used to work on a submarine. (I'm not bull****ing)
    I had to spend hours chipping away rust and covering the area with a converter.

    my point is this, first you'll need to get rid of any loose paint, it can hold moisture and cause new rust. second, you'll need to remove any excess or loose rust. this is often done with a hammer, but in the case of a bicycle frame you may want to opt for something less aggressive like a steel brush. once you have all the loose rust off, you can paint that surface with a special product that converts rust into a paintable surface. (not rust remover, NOT naval jelly)
    I think Rust Knock Out is one of these:
    http://www.rust007.com/knockoutabout.htm

    I can't remember the name, but the product we used turned the rust black. after the rust has been converted you can prime and paint or do whatever you want to restore your bike, but either way, I'd make sure to seal the surface (as best you can) from further moisture (nothing is perfect or will last forever)

  9. #9
    Senior Member ken cummings's Avatar
    Join Date
    Dec 2005
    Location
    northern California
    My Bikes
    Bruce Gordon BLT, Cannondale parts bike, Ecodyne recumbent trike, Counterpoint Opus 2, miyata 1000
    Posts
    5,605
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    The rust treatment advise sounds better than any I can give. For rust prevention there is a company in the San Francisco area that is giving away small promotional cans of a lubricant/rust preventer called Fluid Film. I am trying my can now. If you must remove the paint job there are several bike painting shops that could redo the same exact paint job.
    This space open

  10. #10
    Senior Member
    Join Date
    Aug 2004
    Posts
    198
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    How old is the bike? Obviously an old friend. Consider giving it a place of honeor-like mounted on your living room wall (Talk with wife first) and inveting in a newer updated ride.

  11. #11
    Senior Member
    Join Date
    Oct 2005
    Posts
    5,426
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    The rust converter mentioned is phosphoric acid, comes in many flavors. Body shops sell one brand, marine stores have a brand named Osphocote (I believe). Just look for a product whose active ingredient is phosphoric acid.

    Phosphoric acid converts iron oxide (rust) into another compound, whose name escapes me at the moment, rendering it rust proof and stopping the cancer of rust. The most likely reason your paint flaked is because a good painter will treat a bare frame with a phospho acid etch before painting. Yours didn't.
    Il faut de l'audace, encore de l'audace, toujours de l'audace

    1980 3Rensho-- 1975 Raleigh Sprite 3spd
    1990s Raleigh M20 MTB--2007 Windsor Hour (track)
    1988 Ducati 750 F1

  12. #12
    Dr.Deltron
    Guest
    Quote Originally Posted by Erik
    Is there a way to save my frame without stripping the paint entirely? I really don't want to remove the paint because it is what makes the bike so special.
    ANSWERS; Not really! Buy your beloved bike a new coat! The problem is likely to exist throughout the frame so new paint or powdercoat is your best bet. I could paint it for you, if you want to send it all the way to California!
    Check with your local bike shops and see if they know of any bike painters closer to you than I am.
    Cheers,
    Dr.D.

Posting Permissions

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