I have an aluminum plate (actually about 150 of them) that I'd like to be
able to make gaskets for, to prevent water intrusion. The plates are
approximately 3"x7" and they will be installed on a smooth surface, using
4 screws, one in each "corner". The screws are in from the corners
approximately 3/4" so the gasket will go on the "outside" of the screws.

Ideally, I'd like to cut out the gasket in one piece and it would be 1/2"
wide on all four sides. That is a rectangle with a hole in the middle, and
the size of the gasket portion is 1/2" on all sides. If I cut it out of
one piece, there will be a lot of waste of material. This isn't important
if the material is inexpensive, more of a problem if it's expensive. Um,
say $0.25 to $0.50 per gasket would be acceptable, but possibly more if
necessary.

Oh, thickness is probably 1/8" and the material should be flexible. It's
to seal out rain, often wind driven.

Any suggestions?

--
charles