Mine is a 37+ but I presume that much of the design and construction is
similar.

The design notes regarding Kevlar have it as part of the layup. I think Ken
Heaton might have a better idea but the idea is that the Kevlar simply
makes up some of the layers of matting/roving in the fiberglass. I would
expect it in the hull and would not be surprised to see it in the deck.
Hard to say if it would be preferentially placed in the inner or outer skin.

As for the core, I was anticipating deck rot when I had my mast pulled.  To
my pleasant surprise the cabin top directly around the mast is not cored.
Throughout the boat you can see where coring starts and stops by the
thickness changing.  A perfect example is near the toe rail.  There is a 3"
wide deck section all the way around the boat.  I thought it was just a
gutter.  It is, but it is also an area which is not cored.  Same thing in
the anchor locker as the hull walls approach the toe rail.  Repairs from in
the cabin have the challenge of not having direct access to the cabin top
since there is a "headliner".  You can inspect and get an idea of what lies
ahead but in order to re-core you would want unfettered access to the
entire area of rot.  You'd be best cut around the rim to remove the entire
headliner.  I do like the idea of not disturbing the outer skin.  If you
end up going the outside route I suggest trying to keep as much of the skin
together as a single piece or symmetrical pieces.  A product I like that
can finish off this type of work is kiwi-grip.  It is a urethane non-skid
with a thick coat and variable texture.  It covers seams in the skins great.

Rig-rit sells mast boot tape which I like.  Black 2mm thick, 5' wide.
http://www.rigrite.com/Spars/SparParts/Mast_boot_%20Tape.php

As much as I liked the product, when I had my mast re-stepped the yard used
what they had and it seemed like almost exactly the same except that it was
even wider - Like 6 or 7 inches.  Call Zanhizers in Solomons MD and they
can probably send you a roll.  You might have to talk to Phil or Jack.

Josh Muckley
S/V Sea Hawk
1989 C&C 37+
Solomons, MD



On Fri, Aug 31, 2018, 8:27 PM James Bibb via CnC-List <cnc-list@cnc-list.com>
wrote:

> I have some soft deck repair anticipated around my mast opening…above head
> on port cabin leading edge where folks jump the halyards and foredeck area
> where the bowman has been working since 1991.
>
> 1991 C&C 34-36R so the deck is composite. I assume also of the most part
> however the brief design notes mention a mixture of kevlar and balsa.  Does
> anybody know where the distinction is around the boat?
>
> I’ll be removing the mast for this work.
>
> Also…from below or above?  I really want to leave the gelcoat intake and
> if I can work on the boat over the next few months…have the heated cabin
> environment to help curing.
>
> Anybody been down this road?
>
> Also….need to find a replacement mast boot.  The current one is worn and
> needs replacing.
>
>
> Thanks!
>
> James Bibb
>
> SV Darwins Folly
> 1991 C&C 34-36R
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