Should I repair my wood mast or use aluminum one?

Discussion in 'Wooden Boat Building and Restoration' started by filiperosa, Jun 23, 2008.

  1. filiperosa
    Joined: May 2006
    Posts: 49
    Likes: 3, Points: 8, Legacy Rep: 32
    Location: Setubal, Portugal

    filiperosa Junior Member

    Hello.
    I got a 26ft Diamond Catamaran.
    It comes with the original wood mast (around 40 years old) and by the meantime the previous seller got a aluminum mast (it measures more 1 ft than the previous one) and have the spreaders broken. I do not want to change the rest of the rigging or the sails.
    I would like to know if it would be better to repair the old wood mast or place the aluminum one.
    Regards,

    Filipe
     

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  2. filiperosa
    Joined: May 2006
    Posts: 49
    Likes: 3, Points: 8, Legacy Rep: 32
    Location: Setubal, Portugal

    filiperosa Junior Member

    some more photos
     

    Attached Files:

  3. PAR
    Joined: Nov 2003
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    Location: Eustis, FL

    PAR Yacht Designer/Builder

    The aluminum mast will likely need new hardware, because the wooden mast's will not fit properly. The wooden mast appears to have some seams opening up, probably other issues as well.

    The aluminum mast can be cut down to suit your current sail plan, but there's a fair amount of work to do in this type of conversion.

    If you have a wooden mast that is sound, then make repairs and refinish it. All the hardware will remain and it'll be less costly. If the wooden mast is past due for replacement (it must be accessed by a qualified person), then you may consider the aluminum, remembering the hardware will also need to change.
     
  4. filiperosa
    Joined: May 2006
    Posts: 49
    Likes: 3, Points: 8, Legacy Rep: 32
    Location: Setubal, Portugal

    filiperosa Junior Member

    Hello Par,
    I think the wooden mast in general is sound. I took photo of the worst bits and maybe I will keep it.
    It is a good method strip it down and refinish it with epoxy?
    Regards,

    Filipe
     
  5. masalai
    Joined: Oct 2007
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    Location: cruising, Australia

    masalai masalai

    Build a new wooden mast - looks very sexy, will maintain the "tradition" and I have seen it done - seems easy enough for a "professional" to do.....:D:D:D
     
  6. DanishBagger
    Joined: Feb 2006
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    Location: Denmark

    DanishBagger Never Again

    I'm with Mas,

    Build a new one if needed (should be easy, as it's rather squarish), or repair the broken bits with scarfed in wood – likewise: should be easy, it doesn't look that bad.
    And yes, go with epoxy, just remember to do it in the shade ;-)

    Oh, and either use some UV inhibitors in the epoxy and/or coat it with UV-saturated lacquer afterwards.

    Edit: The UV-saturated lacquer will make the epoxy last longer without discolouring, and the epoxy will make the lacquer last longer because the lacquer sticks better to epoxy than the wood, and the poxy sticks better to wood than the lacquer (If I phrased that right, it should make sense, lol).
     
  7. filiperosa
    Joined: May 2006
    Posts: 49
    Likes: 3, Points: 8, Legacy Rep: 32
    Location: Setubal, Portugal

    filiperosa Junior Member

    Hi.
    Thanks for the help. I think I will just repair the wooden one with epoxy and lacquer. In general the codition seams very good. I just have another question. The boom is not with any varnish. Should I cover it with epoxy also?
    Thank you,

    Filipe
     
  8. DanishBagger
    Joined: Feb 2006
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    Location: Denmark

    DanishBagger Never Again

    If it's dry I think you should. If for nothing else, then for longevity and the same "look" as the mast.

    Lacquer/epoxy (latex in a pinch, ha ha) is all good and used to protect the wood. Especially fresh water (rain) will make a great base for rot, so it's a good idea to protect it against that.

    I'd do the same with the boom as with the mast - definately.
     
  9. Knautcal
    Joined: Apr 2008
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    Location: Mississauga

    Knautcal Junior Member

    Hi
    You should take the time to repair and or replace the wood mast and boom. It does appear to be in quality shape for it's age. You will find that you will have a greater sense of accomplishment once refitted. If you want to head into it with good background knowledge read Skene"s elements of yacht design, chapter 17 spars and rigging. Enjoy...
     

  10. PAR
    Joined: Nov 2003
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    Location: Eustis, FL

    PAR Yacht Designer/Builder

    I wouldn't epoxy your mast, unless it was completely dissembled (I'll still not do it, unless a client insisted). It was likely assembled with a shellac interior and was glued with shellac, resorcinol or a hide glue, plus fasteners. If constructed properly, a traditional wooden build lasts quite a while (as clearly noted in this 40 year old stick), so changing methods and approaches to repair or restoration is unwise and possibly creates potential for new, future issues.

    Wedge open the obvious seam gaps, clean them and reglue with plastic resin or resorcinol, then clamp strongly until cure. Finish with varnish if you want to be able to repair the finish easily, polyurethane if you like, knowing it's more difficult to repair or lacquer if you want the minimum of a glossy clear coat protection and next to no solvent resistance.
     
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