"Roger Long" wrote in message
...
I just called a plastic company to price half inch Lexan skylight
replacement. They said that, although Lexan is stronger, acrylic will
last
longer in the sunlight and is more scratch resistant. They had no idea
what
"longer" means.

If Lexan lasted 10 years instead of 20 I'd be happy. If it was 5 instead
of
10, I wouldn't.

Anyone here have an idea what the real numbers might be for clear
skylights
on a sailboat in the Northeast? Any other pros or cons for one plastic vs
the other?


-- Roger Long

One data point - Lexan is currently approved for huriccane shutters in
Florida. The manuafacuter provides a 10 year warranty against yellowing
(even under our hot subtropical sun.)