Fiberglassing MDO

Discussion in 'Fiberglass and Composite Boat Building' started by drs3317, Jun 9, 2005.

  1. drs3317
    Joined: Nov 2004
    Posts: 47
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: western MD

    drs3317 New Member

    Just starting a project which will include using MDO which I will epoxy and then fiberglass cover.

    Should I buy the "primed" MDO and how should the MDO be preped before epoxy.
    Thanks,
    Danny
     
  2. PAR
    Joined: Nov 2003
    Posts: 19,126
    Likes: 498, Points: 93, Legacy Rep: 3967
    Location: Eustis, FL

    PAR Yacht Designer/Builder

    I've used MDO quite a bit, though the quality has dropped dramatically in the last several years. Do not get the primed stuff, you'll just have to sand it off. I've scuffed up the rosin coating with 60 grit and wet out over it with success, but technically the rosin face should be removed for the best bond. Of course, it should be cloth set in epoxy as poly doesn't stick well to wood and has issues when around moisture. I've pealed layers of MDO glued face to face with and without the paper coating and both had very good bonds, though the wood to wood bond is better then the rosin to rosin bond, but not enough to warrant wholesale removal on every sheet, when a good scuff with an aggressive paper seems to work well enough to lift the fibers of the wood during separation tests.
     
Loading...
Forum posts represent the experience, opinion, and view of individual users. Boat Design Net does not necessarily endorse nor share the view of each individual post.
When making potentially dangerous or financial decisions, always employ and consult appropriate professionals. Your circumstances or experience may be different.