Barnacles on Copper?

Discussion in 'Materials' started by Jacques B., Mar 16, 2014.

  1. powerabout
    Joined: Nov 2007
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    Location: Melbourne/Singapore/Italy

    powerabout Senior Member

    at our club the boats with copper coat still get cleaned every 2 weeks just like all the other anti foul systems, the only difference is they are not applying it yearly
     

  2. Markusik
    Joined: Jun 2017
    Posts: 25
    Likes: 0, Points: 1
    Location: Lake Michigan

    Markusik Junior Member

    Indeed, but a properly designed boat using an outboard for auxiliary propulsion will not have those sacrificial zincs in the water very often. I was under impression we were discussing this in context of sailboats. If actually sailing, or at anchor, it only makes sense to lift the outboard(s) to reduce drag, fouling, etc. I have the impression, based on available research, that such limited exposure to anodic protection does not significantly impair the antifouling properties of metallic copper.
     
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