Many recommend against wrapping the mast completely in plastic. I guess unless you can ensure that it is completely sealed (which is hard to do). Moisture will find its way inside one way or the other.
I would suggest leaving “drip holes” along the bottom of the plastic wrap. It should alleviate the moisture problem, but even more, you won’t have a problem of water freezing inside the wrap. Marek C270 “Legato” Ottawa ON Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10 From: Hoyt, Mike via CnC-List<mailto:cnc-list@cnc-list.com> Sent: November 16, 2016 14:30 To: cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com> Cc: Hoyt, Mike<mailto:mike.h...@impgroup.com> Subject: Re: Stus-List Plastic-Wrapped Spars in Sunlight Interesting topic A few years ago I stored my mast (previous boat) atop saw horses with spreaders attached. The next Spring we noticed slight bulging in both port side spreaders and small cracks on the trailing edge of each. We sent them to a shop that does aluminum welding and the bulges were removed and the cracks welded. We decided that water must have entered these two spreaders and frozen over the winter. Since then I have become paranoid about freezing in the mast so have always removed spreaders. After purchasing a new Tuff Luff I also became paranoid about ice damaging the foil (or that of a furling system) and UV damage to expensive halyards. I began wrapping the mast in left over plastic I had from a home reno project. Not a sticky film but the plastic used as vapour barrier. Am not sure what the harm would be but a couple of guesses are condensation buildup or heat buildup. These days I am lucky enough to store mast indoors so these worries have gone away Mike Persistence Halifax, NS From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Jeff Allston via CnC-List Sent: Wednesday, November 16, 2016 2:31 PM To: RANDY via CnC-List Cc: Jeff Allston Subject: Re: Stus-List Plastic-Wrapped Spars in Sunlight I few years ago I was getting my C&C 32 ready for shipping so I wrapped the mast in several layers of thin film plastic to keep all the running rigging from flopping around. There was a 10 week delay in shipping so the mast sat in direct sunlight and +25c for a while. When I removed the plastic, quite a bit of it was fused to the mast which required a lot of scraping to remove. Jeff
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