aluminium frames

Discussion in 'UK and Europe' started by charlie, Mar 7, 2004.

  1. charlie

    charlie Guest

    Hi Got a couple of large bubbles on my aluminium frame. The
    bike is now 5 years old. Please tell me, it is about to
    crumble or is it nothing to worry about.
     
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  2. [email protected] wrote:

    > Hi Got a couple of large bubbles on my aluminium frame.
    > The bike is now 5 years old. Please tell me, it is about
    > to crumble or is it nothing to worry about.

    Probably just salty water getting under the paint, oxidising
    the alu and lifting the paint off. Bob Jackson in Leeds will
    re-enamel alu frames - my Cannondale is beautiful now, and
    the paint is much tougher than isocyanate 2-pack or whatever
    it is 'Dale use at the factory (stove enamel is almost
    unheard of in the States).

    Cracks would be worrying, but not bubbles.
     
  3. charlie

    charlie Guest

    Thanks

    On Sun, 07 Mar 2004 18:23:52 +0000, Zog The Undeniable
    <[email protected]> wrote:

    >[email protected] wrote:
    >
    >> Hi Got a couple of large bubbles on my aluminium frame.
    >> The bike is now 5 years old. Please tell me, it is about
    >> to crumble or is it nothing to worry about.
    >
    >Probably just salty water getting under the paint,
    >oxidising the alu and lifting the paint off. Bob Jackson in
    >Leeds will re-enamel alu frames - my Cannondale is
    >beautiful now, and the paint is much tougher than
    >isocyanate 2-pack or whatever it is 'Dale use at the
    >factory (stove enamel is almost unheard of in the States).
    >
    >Cracks would be worrying, but not bubbles.
     
  4. Msa

    Msa Guest

    In article <[email protected]>,
    [email protected] says...
    > >Cracks would be worrying, but not bubbles.
    >

    But I'd get a 2nd opinion (lbs or similar) just in case.

    --
    Mark (MSA) This post is packaged by intellectual weight, not
    volume. Some settling of contents may have occurred during
    transmission
     
  5. MSA wrote:

    > But I'd get a 2nd opinion (lbs or similar) just in case.

    Personally I'd strip off the paint with Nitro-Mors and have
    a look, as the finish sounds to be ruined anyway! I can
    think of some LBSs who would seize the opportunity to sell a
    carbon frame as the best solution ;-)
     
  6. Zog The Undeniable wrote:
    > MSA wrote:
    >
    >> But I'd get a 2nd opinion (lbs or similar) just in case.
    >
    >
    > Personally I'd strip off the paint with Nitro-Mors and
    > have a look, as the finish sounds to be ruined anyway! I
    > can think of some LBSs who would seize the opportunity to
    > sell a carbon frame as the best solution ;-)
    I'd check on the can before applying nitromors to a non-
    steel frame. Fairly aggressive stuff. Cheers Graham
     
  7. James Annan

    James Annan Guest

    MSA wrote:

    > In article <[email protected]>,
    > [email protected] says...
    >
    >>>Cracks would be worrying, but not bubbles.
    >>
    >
    > But I'd get a 2nd opinion (lbs or similar) just in case.
    >

    Ok, my opinion is also that a bit of bubbling under the
    paint is nothing to worry about. Our Cannondale tandem has
    been like that for years (except in our case it is a _lot_
    of bubbling, and the paint has completely peeled off in a
    few places). I once exchanged a couple of emails (or it may
    even be on usenet) with some Cannondale tech guy who used to
    be on usenet, who assured me it was merely cosmetic, and I
    see no reason to doubt that.

    James
     
  8. Graham Bowers <[email protected]> wrote in message news:<[email protected]>...

    > I'd check on the can before applying nitromors to a non-
    > steel frame. Fairly aggressive stuff.

    I've used a DIY own-brand (Do-It-All, or Focus as they are
    these days) paint stripper on non-ferrous stuff [1] before
    now, and it came out fine. The paint remover in question was
    a clear, jelly-like substance with dichloromethane as the
    active ingredient, so this and similarly-labelled products
    ought to be OK.

    David E. Belcher

    [1] Not bike frames, but Hornby-Dublo diecast model
    locomotive bodies.
     
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