Well, here is today's result from my latest experiment. I read an American book that talked about Elmer's glue and substituted what we call PVA or BIC's white glue or wood glue here down under!
I painted the glue thickly over the page and then while the glue was still wet painted the acrylic over the top. It's taking a while to dry so I'm guessing if you were in a hurry you'd need to use a hair dryer to speed things up. You'd have to be careful to keep about 20cm away from the surface as it might possibly melt the plastic glue? I think I'll make a few of these in advance ( particularly as we have old bottles of PVA that need to be used up around here).