I've been trying to get a way to paint over a graphite drawing so that it won't smudge just a tiny bit and I can't seem to find anything that works.
At my local art supplies store the salesman advised me to use a good fixative and paint over that, but the fixative seems to dilute in the water I use and the graphite smudges quite a bit.
I tried to put some quick drying oil medium on top of the graphite + fixative. This worked rather well and I can paint on top of the dried medium without smudging the graphite, but when applying the medium the graphite smudged a bit!
So what I'm really looking for is some sort of spray that seals a drawing completely and which I can paint over..?
I read something about Krylon workable fixative, but I can't seem to find anything that sounds or looks like that around here (I live in Holland), and the guy at the art store says he never heard of some spray specifically for sealing a drawing to paint over it...
I know it's possible because I've seen multiple painters paint over a drawing (on video).. I just need the right technique.
Can somebody help me with this please?
P.S. the store I go to sells Winsor & Newton, Talens, and some other smaller brands..
P.P.S. I usually paint with water soluble oil paints.