Bob:
For the sailing I do, if I have to choose from doing the window
replacement job once with Sika or some other similar adhesive, and no
more window leaks, versus any perceived extra structural integrity of my
boat, I choose the 'no leak option'
Rob Abbott
AZURA
C&C 32 - 84
Halifax, N.S.
On 2015-02-12 4:39 PM, Robert Boyer via CnC-List wrote:
Just to add to others' experience with frameless fixed port lights, my
Landfall 38 is a 1983 vintage and I have owned it since 1986. Since
1986 I made two port light replacements using 3/8-inch thick cast
acrylic and plexus before making my last and final fix without Plexus
(about 13 years ago). During the 19 years using Plexus, it seemed
like I always had a leak somewhere in one of the four port lights (the
two aft port lights most frequently). Sometimes, the Plexus' bond
would break and other times the acrylic would crack and cause a leak.
You could say that the Plexus-installed windows lasted 11.5 years each
time on average but during most of that time there were leaks.
The Plexus is very hard (and brittle) after it cures. It certainly
sounds reasonable to me that flexing of the boat's structure causes
these cracks to occur. I really think the reason my current window
design works so well (leakproof for the last 13 years) is that the
flexibility is being accommodated rather than resisted. My fix was
not inexpensive and I did most of the work myself while living aboard.
So, when thinking about Plexus-installed windows, how much of your
service life was really leak-free? I think that is the important
question to ask rather than the frequency of replacement.
Bob
Bob Boyer
S/V Rainy Days / Annapolis MD
1983 C&C Landfall 38 - Hull #230
email: [email protected] <mailto:[email protected]>
blog: dainyrays.blogspot.com <http://dainyrays.blogspot.com>
"There is nothing--absolutely nothing--half so much worth doing as
simply messing about in boats." --Kenneth Grahame
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