This is also my understanding of the
story. I hadn't heard that it was mercury that forced the change
to the formula, but no great surprise.
Sapphire (H/N 70, built in 2000) has a
few stress cracks in places you'd expect, but no serious crazing.
Interesting how inconsistent it is from boat to boat. One
hypothesis is that the proximate cause of the problem is the
affected gel coat being sprayed too thick.
On 5/23/2025 9:56 AM, Jordan via
groups.io wrote:
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Jeff,?
?
I would agree with Bill on this one; you're going to find
varying degrees of this crazing. This was most predominant on
the 362, 402, and 452's that were built from 1996 to 2003. By
the time they launched the 386 and 426 they had transitioned to
a new gelcoat and the crazing issue seemed to go away.
?
My understanding of the story, and I'm sure someone in here
can do a better job of articulating this...
Many manufacturers; Viking, Cabo, J-boats, Sabre, and others
were sourcing their gelcoat from Cook Composites. In the early
90's the EPA issued new regulations which led to Cook Composites
removing mercury from their gelcoat. Mercury was the ingredient
that gave gelcoat its elasticity characteristics. Removing it
meant that as the boat changed size and shape (microscopically)
in different climates the gelcoat wouldn't match those changes
and thus, would crack. The crazing issues started to present
themselves in the early late 90's early 2000's and owners
started to complain and file warranty claims. Many of those
manufacturers went back to Cook Composites and wouldn't you know
it, they went out of business by 2005. I know of one 402 that
was totally re-decked by Sabre, and perhaps there are others.
That boat was on the market a few years ago with a new awlgrip
paintjob and new shiny decks, named 'Egret'.?
?
As for my experience with the situation, my wife and I looked
at 5 - 402's in our search, and since buying one have been on 3
more. One of them was awful, and needed to see a grinding wheel
and paint booth, 3-4 of them were in rough shape, but if you
squinted your eyes, two of them were not bad at all, and one was
exemplary. Polish and wax helps hide it. By no means does it fix
it, but it puts some make up on the pimples.??
?
Long winded answer - but I hope this helps.?
?
Have fun, even it's just window shopping. :)?
?
Jordan
S402-047
formerly S36-087
?
Lake Michigan