Ted Bruce wrote:
Cecil,
I'm pretty sure that Plexiglass is a trade name for acrylic panels.
That stuff is not at all durable.

There's a picture of the Plexiglas® panel on my web page that
was taken ten years ago in Arizona and I'm still using it.
It's the 1/2 inch thick stuff, is still in good shape, and
is still performing its function perfectly. My Piper Plastics
properties chart says the effect of sunlight on Acrylic is "nil".
The main reason that I used acrylic was - it was a 50 cent piece
of stuff from the odds and ends box at a plastics place in Phoenix.
I also used it and some acrylic rods to build an air-core mobile
loading coil about 15 years ago. That coil is still in good shape.

On the othe hand, Lexan (trade
name) is polycarbonate, which is very durable.

Yep, Lexan® is the stuff used in Airplane windows and is easy
to machine. It is superior to acrylic in every way. If I had
used polycarbonate, it would probably still be performing its
function perfectly. (My '96 GMC Sierra Pickup with 180,000 miles
on it is still performing its function perfectly. :-)
--
73, Cecil http://www.qsl.net/w5dxp

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