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  1. #1
    Join Date
    Aug 2018
    Posts
    6

    Default 1960's Wooden Cruiser Repairs

    Hi, I have a 1964 widen cruiser which I am in the process of replacing the front cabin plywood panel. In doing this, I have had to break through the original sheathing on the cabin roof to access screws as well as drilling extra screw holes in it.
    My questions are :-
    1. Can /should I repair the sheathing with new fibre glass cloth and resin or not ; if so how do I go about it?
    2. I have some gaps between the old and new timber and screw holes to fill, what sort of folder should I use - the original seems to be a resin based filler I think.

    Thanks, Andy

  2. #2
    Join Date
    Oct 2001
    Location
    Solent
    Posts
    195

    Default Re: 1960's Wooden Cruiser Repairs

    Sorry to respond with a question but what is the original sheathing? If it glass cloth and epoxy, you should be able to sand back a patch and replace it with epoxy and e-glass cloth. If it is Cascover, it will need patching with resorcinol and nylon cloth. You will need appropriate dust extraction and respiratory and eye protection in any case. If it is canvas and paint, it may all need to be replaced at this stage!
    Screw holes are best filled with grain plugs as stopping will not last as long and will block the screwhead slot. However, those under the new epoxy sheathing may be filled with thickened epoxy. Gaps between the new bulkhead and the hull are best dealt with a combination of a mastic, such as a polysulphide or butyl that will retain some flexibility and can be overpainted, and appropriately fixed pieces of wooden fillets, on either side of the ply. It is particularly important to keep the coach roof repairs waterproof, as otherwise the underlying ply will rot!

    Good luck...

  3. #3
    Join Date
    Aug 2018
    Posts
    6

    Default Re: 1960's Wooden Cruiser Repairs

    Hi, thanks for all the information; I am not sure of what the sheathing would be, the details of her if anyone is interested is, she's a 1963 38' Moreland Classic Motor Boat built by R & W Clark (appointment to HRH QE ll ) of East Cowes in the Isle of Wight. That might possibly help if someone knows the boat builder and their methods of the time!
    When I scraped the paint off the roof to uncover the screw heads, I found that the sheathing is a very thin/finely woven mat with a thin layer of resin over it and then painted on top. I would say that it is definitely not canvas and paint but as to the other two methods I couldn't say which - does the age help with its identification?
    Thanks for your help, Andy

  4. #4
    Join Date
    Dec 2007
    Location
    S.W. France
    Posts
    7,711

    Default Re: 1960's Wooden Cruiser Repairs

    Would have thought epoxy is extremely unlikely at that age (if original). Some sheathing was done with polyester/glass cloth then (we did the deck/coachroof on our 20 footer a bit earlier.) and we sent one of them to Africa with Cascover sheathing in around 62?
    Cascover was a bit brown IIRR.

  5. #5
    Join Date
    Dec 2007
    Location
    S.W. France
    Posts
    7,711

    Default Re: 1960's Wooden Cruiser Repairs

    Bit more.. Sheathing decks, or cabins, other than canvas, was a bit unusual back then esp from a trad builder, so likely later, which opens up the choice of materials. If you are sure it is not canvas..then prob later.

  6. #6
    Join Date
    Aug 2018
    Posts
    6

    Default Re: 1960's Wooden Cruiser Repairs

    I say not canvas as my understanding is that canvas is reasonably thick and this isn't, it definitely has a clear reason type compound on it almost like fibre glass. As far as I can tell at this stage, this sheathing is only on the coach roof, there certainly wasn't any on the front panel I removed at the weekend.
    Andy

  7. #7
    Join Date
    Oct 2001
    Location
    Solent
    Posts
    195

    Default Re: 1960's Wooden Cruiser Repairs

    Hi Andy, from your description it sounds like resin, polyester or epoxy, and glass. This was often done to replace the original canvas/paint system. You should be able to effect a repair with epoxy and glass cloth, the West website has the details: https://wessexresins.co.uk/images/su...hing_guide.pdf

  8. #8
    Join Date
    Aug 2018
    Posts
    6

    Default Re: 1960's Wooden Cruiser Repairs

    Great, thanks for that,
    Andy

  9. #9
    Join Date
    Oct 2018
    Location
    A Member State of the European Union
    Posts
    6,598

    Default Re: 1960's Wooden Cruiser Repairs

    Excellent advice from wrr.

    I resheathed my plywood coachroof using WEST tapered edge cloth and the result was completely watertight.
    "Brexit: like watching a library being burned down by people who can't read"

  10. #10
    Join Date
    Aug 2018
    Posts
    6

    Default Re: 1960's Wooden Cruiser Repairs

    It's always good to hear a success story, thanks, it looks like that's the path I shall be following, Andy

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