My boat was built with windows sealed on the outside of the hull.
They leaked adequately to cause enough damage that I could afford the
boat. I did replace them with acrylic and the installation leaked
after a few months. Next we tried nylon washers between the window
and the hull to maintain a minimum sealant thickness of about 3 mm to
absorb differential expansion and hull flex. This has worked well for
4 years.


"Wally" wrote in message ...
The windows on my boat need to be replaced. They're fitted into those
old-style channelled rubber strips that are used to hold vehicle windows in
place - the rubbers are rather perished and the acrylic is clouded and
crazed. I'm considering putting tinted acrylic on the outside of the cabin -
any thoughts on the wisdom of this approach?

By fitting on the outside surface, I have the opportunity to change the
window shape - here's a couple of side views of my vast, ocean-going,
18-foot mega-yacht, showing the original window shape, and the proposed new
shape...

http://community.webshots.com/album/136291482TgUkPQ