I had a couple of days between gum printing, so decided to size (with gelatin and hardened with formalin) the latest lith print I made before trying a new layer of gum.
Unfortunately tho it doesn't seem to have helped. Th gum coated better and easier, but after exposing and developing to a density I liked it didn't dry properly again and ran away.. not completely off this time, but left a kinda streak of magenta, which is worse I guess.
Which means something else is wrong, soooooo could it be an exposure issue? would it require more exposure than normal because the gum doesn't seem to be soaking into the paper? or am I not washing it for long enough and what looks to be the gum layer running off is actually residual pigment that hasn't been hardened?
I realise it could be any of those and there's no way of guessing, so I'm just sort of talking out loud, but any ideas would be helpful.