Funny story about re-bedding windows and may shed a bit of light on adhesive
choices.
Bought the bought in East Greenwich, RI. Soon after the purchase I stopped in
on the way to the airport to pat the New Love on her behind. For whatever
reason in the process I popped out a window! Holy Shite. I am in a suit. I
have a flight and the damned window popped out! Run up to Brewers store and
ask for an adhesive. They gave me Life-Seal. No questions asked I head back
to the boat and plunk the window back in without too much fuss or mess. Don't
know how I did it under pressure whilst nattily dressed and making my flight
but I did.
Damned thing hasn't leaked since that spring of 2005.
So when I re-bed my new ports...guess what I am using.
David F. Risch
(401) 419-4650 (cell)
Date: Wed, 21 Oct 2015 15:20:45 -0400
To: cnc-list@cnc-list.com
Subject: Re: Stus-List Replacing Windows
From: cnc-list@cnc-list.com
CC: dainyr...@icloud.com
I have owned my LF 38 for over 30 years now. I have done the Plexus repair
twice--so, I have been through 3 sets of windows (if you include the originals)
within probably the first 20 years. Because of my frustration with Plexus, I
designed and built stainless steel frames for my boat, using 3/8-inch thick
cast acrylic, and a flexible GE sealant, and they have lasted about 10 years
without any leakage whatsoever. I did not try SIKA but I know it is a good
product (have used it elsewhere) and I expect that it would work fine too. I
think the Plexus is simply too rigid for a flexing boat like our C&C's--I would
like to see how anyone can get any flexibility out of it. (Perhaps each of our
boats have different flexibilities--so, I am speaking of my LF38).
I agree that Lexan would scratch easier than polycarbonate.
I read Don Casey's article and I have to wonder if he really knows what he is
doing...or if he is talking about smaller windows in other boats.
Bob
On Oct 21, 2015, at 1:45 PM, Gary Russell via CnC-List wrote:Hi Paul, I
agree that 1/4" is too thin. The other 37+ at my club has 5/16" It amazes me
that people with no marine design experience would change the design. I plan
to go with 3/8" acrylic. But then again...
The problem with Lexan (which is a polycarbonate) is that it is less
scratch resistant than Plexiglas (acrylic). You are probably trading one
problem for another.
As for Plexus vs Silka 295, I am really torn. The write-up in the Photo
Album suggest that Plexus will be flexible enough if (big if) the bond
thickness is large enough. To that end he added glass beads to the adhesive to
make sure the bond thickness didn't get thinner than 0.030".
Thoughts, anyone?
GaryS/V High Maintenance'90 C&C 37 PlusEast Greenwich, RI, USA~~~~~~~_/)~~~~~~
On Wed, Oct 21, 2015 at 10:56 AM, Dreuge via CnC-List <cnc-list@cnc-list.com>
wrote:
Gary,
I am surprised that you have 1/4” acrylic. To have the strength acrylic should
be more like 3/8”.
Are you sure you don’t have 1/4” polycarbonate?
I recently replaced all of the fixed ports on my LF38 using 1/4” Makrolon
(abrasion & UV resistance polycarbonate), 3M VHB tape, and Dow 795.
I have pictures and a discussion of the process at:
http://svjohannarose.blogspot.com/search/label/NewPorts
Paul
-
Paul E.1981 C&C 38 Landfall
S/V Johanna Rose
Carrabelle, FL
http://svjohannarose.blogspot.com/
On Oct 21, 2015, at 8:08 AM, cnc-list-requ...@cnc-list.com wrote:
Date: Tue, 20 Oct 2015 21:16:09 -0400From: Gary Russell
<captnga...@gmail.com>To: "C&C List" <cnc-list@cnc-list.com>Subject: Stus-List
Replacing WindowsMessage-ID:
<cabgkxplqhqnkcdzd0eqskekj9xbe5_g9zo1zwv128v9sdqq...@mail.gmail.com>Content-Type:
text/plain; charset="utf-8"I am starting the process of replacing the side
windows on High Maintenance(1990 C&C 37 Plus). The windows have been replaced
before (not original)and are currently 1/4" acrylic. Is that the right
thickness? I've seen insome places references to 3/8" windows. So were the
original windows 1/4"or 3/8"?Thanks,Garys/V High Maintenance'90 C&C 37 PlusEast
Greenwich, RI, USA
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Bob Boyer
S/V Rainy Days (1983 C&C Landfall 38 - Hull #230)
email: dainyrays@icloud.comblog: 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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