Lots of choices, but I suspect most is vinyl (aka polyvinyl chloride aka
PVC). I've bought most from Wal-Mart's fabric section, but for rigid stuff
I went to US Plastics
http://www.usplastic.com/catalog/cat...+plastic+sheet

If you make up patterns, I suspect your local convertible top maker will be
more reasonable than the marine suppliers.

Roger

http://home.earthlink.net/~derbyrm

dh@. wrote in message ...
A lot of people around here have covers made for their
boats that will go around the front deck or a rear deck,
custom made of fabric and heavy flexible clear plastic
sown together, and it usually snaps and zippers in place. I
don't know what to call them. What I'm mainly interested
in is the plastic. Can anyone tell me some specifics about
it so I have an idea what to look for, and maybe even
where to get it?