Electrolysis deck gear carbon G10 Aluminium

Discussion in 'Sailboats' started by NHRC, Aug 10, 2016.

  1. NHRC
    Joined: Jan 2014
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    Location: Lymington

    NHRC Junior Member

    Hi guys

    So I am in discussions with a project manager who insists that it is common practice to bolt Aluminium winches to Carbon boats without an insulation layer of G10.

    Anyone out there boat building at a reputable composite boat yard willing to advise on what they see as good practice?

    Anyone from Green Marine? Ex-Goetz? Baltic? Persico? NEB? McConnaghies etc???
     
  2. Ad Hoc
    Joined: Oct 2008
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    Location: Japan

    Ad Hoc Naval Architect

    carbon eats ally...don't do it!!

    Corrosion.jpg

    A potential greater than 50mV is not advised and greater than 250mV is a killer
     
  3. PAR
    Joined: Nov 2003
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    Location: Eustis, FL

    PAR Yacht Designer/Builder

    Yeah, I don't know of any manufacture that's bolting aluminum to anything so noble. The aluminum would literally break down as you stare at it.
     
  4. NHRC
    Joined: Jan 2014
    Posts: 9
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    Location: Lymington

    NHRC Junior Member

    I believe it was a labour saving cost cutting measure.

    Backfired obviously as they are now rectifying the issue under warranty.
     

  5. CDK
    Joined: Aug 2007
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    Location: Adriatic sea

    CDK retired engineer

    The good news is: graphite boats do not exist!
    "Carbon" boats are made from plastic with embedded carbon fiber reinforcement. The surface doesn't conduct, so there is no electrolysis if bolt holes are sealed.
     
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