One of my paintings was just accepted into a juried show today. (My first DMP attempt!) However, I rushed to add some finishing touches just before I entered the juried competition. The drop-off is three weeks from this Saturday.
So, essentially, the paint film is not completely cured. Can a painting be varnished within weeks of final brush strokes? (I finished it on 6/14 in order to meet the entry deadline.) I guess I could leave it unvarnished. I know many artists who don't varnish their work.
I have to offer special thanks to this forum and Mr. Carder for his method and inspiration. I would not have entered this show if I had not been inspired by all of you (and the paint medium formulae) to paint again.