Water freezes in winter here in Nova Scotia: doesn’t matter if it’s trapped in balsa or not still freezes and with freezing expands volume by 10 percent with a force that is very hard to constrain. That can’t be a good thing year after year if wet balsa is in a polymeric hull. If i am wrong please explain why “yup there is moisture there” does not quite do it for me. I do not believe there is any balsa core in the hull of my 35 MKII. Just the deck I think and that’s enough with all the penetrations. So far I think Alianna’s deck is dry and this year she turned 45. I like my C&C she seems to be the same year after year with no major issues so far. On Tue, Aug 27, 2019 at 2:09 PM Rob Ball via CnC-List <[email protected]> wrote:
> I’m interested in the details of the ‘problem’ . . . . > > The ones I’ve seen have come from installation of thru-hulls where water > got to the balsa surrounding it and then migrated from there . . . > > > > We bought a moisture meter at the plant and went about testing a lot of > different boats – new and old . . . . We found moisture in strange places > and also on very old boats as well . . . > > But then eventually decided that YUP, there’s moisture there . . . . > > The boats didn’t break or seem any weaker or anything . . . . Since there > are paths all around the 2 inch squares of balsa, water can move around > easily. Structurally we’ve been told that with 40 % of a square connected > to the two skins, the structure is virtually not changed – so our squares > that were probably 95 % connected were still a very conservative structural > sandwich. > > Our bottom line – yes moisture isn’t probably the best – but in most > instances not a serious enough problem to affect a repair . . . > > On decks, we see problems when the wetness extends more thoroughly and > often does indeed get to the point that the structure breaks down . . . > > > > *Rob Ball **C&C 34* > > *From:* Matthew L. Wolford <[email protected]> > *Sent:* Tuesday, August 27, 2019 11:43 AM > *To:* [email protected] > *Subject:* Re: Stus-List 1981 C&C Inspection > > > > Steve: > > > > I can speak to the balsa core issue. The 34 is cored below the > waterline, and the boat should be hauled for a hull survey with a moisture > meter. My 1978 34 had a problem and was repaired by a prior owner. My > 1976 42 also has the same problem. Do not buy the boat until this issue is > addressed to your complete satisfaction. > > > > *From:* Neil Andersen via CnC-List <[email protected]> > > *Sent:* Tuesday, August 27, 2019 10:59 AM > > *To:* [email protected] ; [email protected] > > *Cc:* Neil Andersen <[email protected]> ; Stephen McCarthy > <[email protected]> > > *Subject:* Re: Stus-List 1981 C&C Inspection > > > > Steve, > > > > Your concern of moisture penetration and delamination is what a good > surveyor is for. > > > > The engine is a different issue. Most surveyors will only check that the > engine runs properly, at a good temperature and will optionally do an oil > analysis (I would recommend you get that done). More than that typically > requires a certified Yanmar mechanic. > > > > Neil Andersen, Yacht Broker > > 1982 C&C 32 FoxFire > > > _______________________________________________ > > Thanks everyone for supporting this list with your contributions. Each > and every one is greatly appreciated. If you want to support the list - > use PayPal to send contribution -- https://www.paypal.me/stumurray > > -- Sent from Gmail Mobile
_______________________________________________ Thanks everyone for supporting this list with your contributions. Each and every one is greatly appreciated. If you want to support the list - use PayPal to send contribution -- https://www.paypal.me/stumurray
