I did not say Mylar was opaque to UV, I was responding to someone who
did. Frankly, if this is true, we may all be in a heap of trouble since
the major film manufacturers are all switching there film base to
mylar (polyester-D). (that's "their film base") If the film base is Mylar
and Mylar is opaque to UV, how are we going to print? Maybe this needs to be
checked out. If I have time over the coming week-end I will do so.
Bob Schramm