[C320-list] Hull makeover

[Allan S Field]

Marco - If the boat was originally commissioned on the Chesapeake, there is
a better than even chance that the hull was not de-waxed at original
commissioning.  How do I know this?  Because for years, I had peeling paint
issues and finally was able to isolate the problem to lack of dealer prep
from a dealer on the Chesapeake.  I finally surrendered last August and had
the bottom soda blasted.  For the first time in 13 years, the paint rolled
on like it was supposed to do - no rolling on of one coat and pulling off of
the previous.  I will do a shorthaul in about 2 weeks to clean and repaint
the underwater metals plus change the zincs so will know more then as to how
the paint has held up for a year.  But just from the way it went on, I very
much doubt that I have any more issues.

As for blistering, these boats are supposed to be laid up with vinylester
resins which are bullet proof from blistering, so I have been told by Gerry
Douglas.  I leave my boat in the water year round and have never had one
blister.  That said, there was a run of 75-100 boats back in the 1990's that
did suffer from blistering.  Your boat may have been one of them but perhaps
someone else on this list knows the hull numbers that were impacted.  My
memory though is that they were in the 400 series.  If I am right, I am
perplexed to understand why you have had any blisters.  Could they have been
just paint bubbles?  I had a ton of them every year at haulout but again,
that's because the paint would not stick to the bottom.

I also have heard, but never fully confirmed, that Catalina made-good on
those affected hulls that did have blistering issues.  So you may want to
contact Catalina to determine if they know whether or not yours was impacted
or if it was corrected at their expense.  I do know of one boat on the
Chesapeake that was "fixed" at Catalina's expense but several years later,
needed to be "fixed" again at the owner's expense.  Based on an "n" of one,
it could be that the fixer of your boat was the same fixer of the one I know
about and it really wasn't fixed.

Hope this helps.

Allan S. Field
Sea Shadow - #808
Columbia, MD

-----Original Message-----
From: C320-list [mailto:c320-list-bounces at lists.catalina320.com] On Behalf
Of Marko Jamnik
Sent: Wednesday, August 5, 2015 4:39 PM
To: C320-List at Catalina320.com
Subject: [C320-list] Hull makeover

Not a good time to be planning a fall, winter project, but here it goes.

Sail number 304 - 1995. I had purchased the boat in 2010 and have brought to
lake Ontario. Prior to that it had been in Baltimore and I have no idea how
many times it was hauled out for inspection, not many. I did a cosmetic fix,
sanding and drilling out three blisters the first season, there after
sanding and applying Micron. Tried to sand down the blue antifouling paint
that had been there, some success in areas and other location not. Over the
last five years I've had no more blisters and I'm finding that every year
more of the blue paint peels here and there exposing the inter protect
layer.

The challenge here is do I sand blast. peel the hull or any other method.
Is it worth while doing it myself or am going to regret the challenge. My
thought here is to have some do one of the above options and then I will do
the remainder, epoxy, interprotect, sanding and antifouling which should put
me on the door step of launch time.


Any advice would be much appreciated

Marko jamnik
Marquesas 304
Lake Ontario

Toronto/Mississauga area