Gary:
I sent you the process I used 'off list'.
The 2 forward windows on my boat are also curved.....not exactly sure
how much but it is noticeable.....you can get a better idea when you
take the old windows out and lay them on a flat surface. I used Sika 295
UV with the Sika primer and I also wondered if this adhesive would hold
the curved window(s) in place. It's been 6 seasons and no problems.
Before installing the new windows, I wondered how I was going to 'brace
them' while the Sika cured. I explained all of that in my 'off list'
email to you. Any further questions, don't hesitate to ask.
Rob Abbott
AZURA
C&C 32 - 84
Halifax, N.S.
On 2015-10-21 11:07 PM, Gary Russell via CnC-List wrote:
Fred,
The VHB tape with DOW Corning 795 Silicone Sealant is starting to
look like and attractive method. I am replacing the windows over the
winter, also. We should keep in touch. Do I assume you would use the
gray VHB tape with the gray silicone sealant? I am wondering if the
VHB tape will be a problem with peel. My cabin sides are curved, so
the windows will have to be bent slightly to conform to the side of
the cabin. I wonder if that will be a problem with the 3/8" thick
acrylic trying to return to a flat shape?
Gary
~~~~~~~_/)~~~~~~
On Wed, Oct 21, 2015 at 2:03 PM, Frederick G Street via CnC-List
<cnc-list@cnc-list.com <mailto:cnc-list@cnc-list.com>> wrote:
Gary — I’m going to be replacing the fixed windows on my LF38 over
the winter. I’ve done the Plexus thing twice now (previous boat);
this time, I’m going to try the VHB tape with Dow 795 approach,
like Paul did on Johanna Rose:
http://svjohannarose.blogspot.com/search/label/NewPorts.
I’ll be using 3/8” bronze acrylic with a chamfer to the outside edge.
— Fred
Fred Street -- Minneapolis
S/V Oceanis (1979 C&C Landfall 38) -- on the hard in Bayfield,
WI :^(
On Oct 21, 2015, at 12:45 PM, Gary Russell via CnC-List
<cnc-list@cnc-list.com <mailto:cnc-list@cnc-list.com>> 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?
Gary
S/V High Maintenance
'90 C&C 37 Plus
East Greenwich, RI, USA
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