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Anti-fouling the hull

  • 18-12-2017 6:24pm
    #1
    Thanos
    Registered Users, Registered Users 2 Posts: 1,389 ✭✭✭


    So I have the boat out of the water this winter and intend to do some work around the hull.
    One of those jobs being the anti-foul.
    Is there a right time to do this? as in should it be left to a few weeks before the boat goes back in the water or could it be done in January if the weather was good?
    Is there a right type to use? When I google I see "International" pops up a lot as one to use but there are a good few types (UNO EU, Micron Extra 2 etc.), so which one to use???? (boat is on the Shannon so fresh water)
    What do I need to do first in way of cleaning (boat was pressure sprayed at the time it was taken out)? Sanding or other cleaning or just a good rub with a strong bristled brush?

    Thanks for any advice.


Comments

  • #2
    fergal.b
    Moderators, Motoring & Transport Moderators, Sports Moderators Posts: 6,353 Mod ✭✭✭✭fergal.b


    I used Hempel Broads antifoul as it worked out cheeper than International :) I'm also on the Shannon, mine was very bad so I sanded back to the fibreglass and then primed and painted it's best to do it as close to launching as possible the week or two before hand would be fine. If your happy with the finish after power washing you can get away with painting over the old antifoul.





    .


  • #3
    Steve
    Registered Users, Registered Users 2 Posts: 22,584 ✭✭✭✭Steve


    I'd normally do a first coat a few days before launch and second coat the day before.

    It'll lose effectiveness if you leave it dry too long.


  • #4
    pedroeibar1
    Closed Accounts Posts: 5,108 ✭✭✭pedroeibar1


    You have to ensure that the paint you use is compatible with the surface underneath, otherwise you will have bonding problems. Also you need to take hull speed into account, as what works on a yacht that won't go above 6 knots is not going to last on a speedboat. I've used Hempel for several seasons (sea & yacht) 'cos it was what was used by previous owner. I found it very good and probably has the edge on International which I had always used before. (And Steve is correct above, it will lose effectiveness and even crack if done too soon.)


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