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    WWW.RLYACHTS.NET
    RL24, RL28, and RL34 Trailable Yachts
    from Rob Legg Yachts

    RL Yacht Owner's Discussion Forum
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    Osmosis
    Rob, or others who may have info.
    I have commenced restoration of RL 24 No.75 and have found amounts of osmosis. I have ground out down to stable material, gone through gel coat, a layer of chop mat (about 1-2mm thick) into solid resin. In some places the unreacted resin went completely through to the foam. The largest hole is about 50mm diameter. The worst affected areas are above waterline (so far!!!) The worst areas are also in the same area,
    stbd bow, and forming a general 'swathe' as if there was a bad batch mix, moisture at the time of lay-up or poor application to that area. The worst affected area is about 150mm wide x about 600 long, where the unreacted resin has delaminated the chopped mat and gel coat from the later applied strata.
    Should I replace the chopped mat or just fill with epoxy, fair and paint? I would also like to hear comments on different materials used for this type of work. Name brands etc for epoxy, two pot paint, methods of application and the like.
    james moline1-Jan-2010    Edit    Delete 
    Re: Osmosis
    James.
    I find it surprising that after three plus decades the problem has only just shown up, and the best advice I can give you is to download the "West system" boat repair guide that covers just about everything that you need to know. You can also find their product outlets on the net.
    In the discussion forum go back around six pages to 25 May, item three and download the imformation (some 1.5 Mb of it).
    You have quite a big job ahead of you. Good Luck.
    Rob Legg1-Jan-2010    Edit    Delete 
    Re: Osmosis
    Rob, I dont think the problem has just shown up; the boat has been a mooring minder for ten years and never been looked at. I have just inherited it and removed from the water. i am looking forward to the 'project' so I can teach my grandkids to sail.
    James Moline3-Jan-2010    Edit    Delete 
    Re: Osmosis
    Thanks Rob
    Good info, added to Epiglass etc, gives me the info I need. I've done it all before on many boats but I thought there may be some super new stuff around.
    I have also just decided to record my project in photos and (short) words as it may end up being informative for others. If not we can always delete it.!!!!!! I will start a post some time in the future.
    Currently very busy readying for a flight from Sydney to Perth (around the coast)in my SeaRey Amphibian Seaplane along with five others. That will be some adventure.
    james moline5-Jan-2010    Edit    Delete 

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