On Wed, 29 Oct 2014 18:46:24 +0700, John B. Slocomb
wrote:

On Wed, 29 Oct 2014 06:37:26 -0400, Ed Huntress
wrote:

snip

Anyway, your sarcasm was misplaced, as was Richard's. I don't know
what the hell he was talking about regarding boat paints. And when you
popped off about PFDs, it was clear that you don't sail where we sail.


I think Richard was probably referring to the fact that most, if not
all, small production fiberglass boats have the hull finished with gel
coat and a boat requiring paint would be one on which the gel coat had
deteriorated to a considerable degree.


Enjoy your sailing in S.E.A., John.

Cheers,

John B.

It's true that failing gel coats on lightly-built fiberglass boats may
reflect fatigue in the hull layup, but I don't see that as a reason to
make a blanket statement about it. Strongly-built boats, like a Boston
Whaler, Black Watch, Cape Dory or Stone Horse, will FAR outlast their
gel coats, and it has nothing to do with fatigue -- because those
boats generally don't fatigue.

There's an entire industry dedicated to re-covering those boats. It
satarted with a spray-on replacement gel coat around 1960; progressed
a few years later to sprayed-on two-part epoxy; and, finally,
developed into re-coating with two-part polyurethanes, a lot like the
paint used on high-class custom cars.

And polyester gel coats are porous; they can get stained, or marked up
badly because of the way they were tied up at a dock.

Gunner is more likely talking about rolling on a coat of house paint
g, but I don't get why Richard was so dismissive about painting a
boat. There are a lot of boats around here right now that are dry
docked or up on stilts, having their topsides painted at the same time
they're getting a new coat of bottom paint, before the weather gets
too cold. Most of them are fiberglass boats.

--
Ed Huntress