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Epoxy

  • 01-11-2018 1:28pm
    #1
    AdrianLM
    Registered Users Posts: 66 ✭✭



    West 105 system is a good epoxy and an orbital sander should do the job
    on the wood

    I saw this quote on another thread, but didn't want to go off topic. Would this be suitable for resealing GRP hull and sealing edges of plywood as well?

    Also, where is the best place to purchase from?

    Thanks


Comments

  • #2
    Ferris
    Registered Users, Registered Users 2 Posts: 2,290 ✭✭✭Ferris


    Waller and Wickham in Baldoyle can supply West 105, I've used them plenty of times, also a good source of actual marine ply.

    http://www.wallerwickham.ie/

    However, when you say 'resealing' a GRP hull, what do you mean? Above or below waterline? Surface finishing? etc.


  • #3
    AdrianLM
    Registered Users Posts: 66 ✭✭AdrianLM


    Thanks Ferris,

    Above the waterline, There are some areas which have been patched in the past or small areas where the glass fibers seem closer to the surface.


  • #4
    Ferris
    Registered Users, Registered Users 2 Posts: 2,290 ✭✭✭Ferris


    Good stuff, you can mix epoxy with an filler to make it into a fairing paste. You spread it on thinly and sand it down, preferably with sandpaper on a long board. However there may be other fairing compounds which are easier to work with. Tbh a lot of guys just use auto body filler and paint over but its quite porous and may give issues with paint.

    Also a sander is unlikely to help as its pad is too small and will result in low spots from digging in.


  • #5
    fergal.b
    Moderators, Motoring & Transport Moderators, Sports Moderators Posts: 6,337 Mod ✭✭✭✭fergal.b


    Is the boat painted or gelcoat if it's gelcoat it might be worth getting "plastic padding" it's a gelcoat repair kit and will give you a polished finish if you wanted one, if the old fibres are showing you will have to sand down into it to remove any dirt and dampness. Have a read through Dames sticky https://www.boards.ie/vbulletin/showthread.php?t=2056217528 you should pick up lots of tips and tricks.




    .


  • #6
    AdrianLM
    Registered Users Posts: 66 ✭✭AdrianLM


    Thanks for the tips. The boat was painted previously, it's not a case that it was over sanded, it just seems that there are a few apparent weak points in the GRP as you go higher up the hull. Maybe I'm being overly cautious.

    I'll have a read of the sticky. Thanks again


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  • #7
    Ferris
    Registered Users, Registered Users 2 Posts: 2,290 ✭✭✭Ferris


    I think you need to assess if there is damage in these areas. Do the patches flex when pressure is applied? Surveyors tap the hull with a small hammer to see if the tone of the tap changes to indicate damage to the laminate, might be worth a try. Do you have any pictures?

    In any case the layup of your boat should be very durable, generally they built them heavy in the 70's as GRP was a relatively new material and laminate thicknesses erred on the cautious side. My uncle had an Elysian 34 and it was built like a tank, my dad had a Seamaster 30 which was similarly heavily built in the hull (albeit not in the deck - a common issue).


  • #8
    AdrianLM
    Registered Users Posts: 66 ✭✭AdrianLM


    In any case the layup of your boat should be very durable, generally they built them heavy in the 70's as GRP was a relatively new material and laminate thicknesses erred on the cautious side. My uncle had an Elysian 34 and it was built like a tank, my dad had a Seamaster 30 which was similarly heavily built in the hull (albeit not in the deck - a common issue).

    Definately correct about that, it weighs over 3 tons. I had another look yesterday, the patches I'm concerned about all seem to be in areas where holes were filled previously I.e were fittings were removed for example a sink outlet, whoever repaired them got carried away with a sander. I hadn't been on boards for a long time and lost my login due to an issue with gmail and forgetting my boards password:mad: I can't post pictures until I have 50 posts, I'll have to start posting recipes in the food forum or something:rolleyes:


  • #9
    fergal.b
    Moderators, Motoring & Transport Moderators, Sports Moderators Posts: 6,337 Mod ✭✭✭✭fergal.b


    If you want to PM me some photos I will put them up for you. :)




    .


  • #10
    AdrianLM
    Registered Users Posts: 66 ✭✭AdrianLM


    Thanks Fergal, I'm nearly at 50 (in more ways than 1 unfortunately). Another few posts and I'll start a thread on the re fit.


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