<< but do not understand why quite so many coats are necessary. >>
It has to do with the "gee" factor. When you look at one of your prints and
go "gee this would look perfect if .... " . At the point there is no
"gee" factor left in a print then I stop. For some reason this turns out to
be about 10 to 15 coats.
Bernie
Bernard Boudreau