|
I make no claims to expertise, but a couple of thoughts occurred to me while reading the thread.
First, inks used on paper are often oil-based--linseed oil sometimes, I think--and don't rot the paper. Maybe using oil paint on pulpy subtrates like newsprint isn't such a good idea, but high-quality papers aren't likely to deteriorate all that much, so far as I know, Mayer notwithstanding.
And second, shellad is probably a fine primer. But why bother with it? Acrylic "gesso" (whiting in an acrylic vehicle, which isn't real gesso) is pretty flexible and can be used profitably as a primer for paper, is easily available, requires no mixing, and is probably cheaper than shellac, too.
Again, I'm not an expert, but I've used oil paint on paper for years for sketches and studies.
|