galvanised parts on steel hull

Discussion in 'Metal Boat Building' started by dick, Feb 4, 2009.

  1. dick
    Joined: Aug 2008
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    Location: Australia

    dick Junior Member

    Is it ok to use a galvanised pipe as a radio and radar mast bolted to a steel flybriddge on a steel boat same goes with a fully galvanised davit crane will they become sacrificial zinc for the rest of the boat?
    If so maybe insulation will isolate and protect them.
     
    dick, Feb 4, 2009
    #1
  2. Brent Swain
    Joined: Mar 2002
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    Location: British Columbia

    Brent Swain Member

    No problem at all. I've used welded on Galv for lifelines, handrails and used pre galv sheets for my decks , cabin wheelhouse, and cockpit , no problem in 25 years. Wash it with TSP,then water, then vinegar, then water , and let it dry before painting.
    Brent
     
    Brent Swain, Feb 6, 2009
    #2
  3. dick
    Joined: Aug 2008
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    dick Junior Member

    Thanks for the help what is TSP?
     
    dick, Feb 6, 2009
    #3
  4. tazmann
    Joined: Aug 2005
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    Location: California

    tazmann Senior Member

    TSP Trisodium Phosphate All-purpose heavy duty cleaner.
     
    tazmann, Feb 8, 2009
    #4

  6. Brent Swain
    Joined: Mar 2002
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    Location: British Columbia

    Brent Swain Member

    Be wary of Galvanized cleats . They are almost all cast iron, brittle as glass. I one broke all the welded on galvanised cleats off a boat ,with a single swing of a claw hammer for each one, very dangerous if they break under load.
    Brent
     
    Brent Swain, Feb 8, 2009
    #5
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