Whether drilled frame need a layer of varnish protection?

Discussion in 'General Cycling Discussions' started by dudigrinfeld, 15 Jul 2012.

  1. dudigrinfeld

    dudigrinfeld Active Member

    I have width the internal cable holes in the frame and in the BB area, FD hole to insert all DI2 wires internally. I have heard
    It might be useful to paint the enlarged holes with clear nail varnish or laquer as now exposed carbon laminate can expand if water gets in there. Anyone knows if this is recommended?
  2. derrick

    derrick The Glue that binds us together.

    better with a resin coat i would have thought.
  3. Mr Haematocrit

    Mr Haematocrit msg me on kik for android

    Out of the saddle
    As stated in the other thread I do it, simply because I have seen symptoms around this area previously on a drilled bike and this was the explanation given for the issue. I can't claim to know if it was correct or not as im not an engineer but it seems feasible and made me paranoid. A little extra protection round a drilled hole in carbon would do harm at any rate. No matter if its nail varhish, laqueror, clear coat etc.. if it stops moisture or water getting between exposed laminate it seems a sensible thing to do imho
  4. OP

    dudigrinfeld Active Member

    Okay sounds fair, just wanted to see if anyone knows regarding the material, as if it is safe to paint it around the holes. I also have a black lacquer, I used ones to touch a paint chip on the other carbon bike I had before, would this work as well?
  5. OP

    dudigrinfeld Active Member

    what is resin coat! Why is it better?
  6. Smokin Joe

    Smokin Joe Legendary Member

    Makes one wonder why boat hulls are made from carbon fibre if a couple of rain drops will destroy it.

    Anyone that paranoid about the material should stick to steel or alu.
  7. Exposure to water does not affect carbon fibre laminate.

    Drilling holes in it does though. You've also invalidated your warranty.
    smokeysmoo likes this.
  8. derrick

    derrick The Glue that binds us together.

    Resin is what they use to bind the carbon together, it's the right stuff for the job.
  9. Has the OP an autoclave do we think?
  10. byegad

    byegad Legendary Member

    NE England
    Drill a carbon frame? Brave or foolish?

    What do we think?
  11. derrick

    derrick The Glue that binds us together.

    You don,t need one to mix a bit of resin.
  12. OP

    dudigrinfeld Active Member

    So what exactly to look for? resin epoxy or what?
  13. derrick

    derrick The Glue that binds us together.

    If you went to your local model shop and spoke to them, they should point you in the right direction,
    they sell in small amounts so should not cost you much,
    what part of the uk are you in, might be able to send you a link.
  14. OP

    dudigrinfeld Active Member

    London Mayfair area

  15. None of the constituents of carbon fibre composites is water soluble.
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