I have never baked something after a piece has been painted. I've only baked chalk pastel after it has been applied. I don't know what the reactions of the paint would be, but I can think of 3 possible reactions. 1. melt 2. bubble 3. nothing haha, I would bet it'd bubble.
Do you have to bake it after it has been painted? is it a must? if you do, let me know the reactions! I'm curious haha.
Folk Art also makes an enamel acrylic paint that requires either 21 days to air dry or baking for 30 minutes (after an hour of air dry time). It will have a glossy appearance. Otherwise, I use Apple Barrel acrylics because they have a longer shelf life. Normal Folk Art acrylics tends to separate after some time. The enamels do not have this issue.
The high quality acrylic paints are reserved for canvas. I have no idea how they would react to being baked.
Lol I try to leave the paint as the very last step, but I'm scared of baking again (like to add some details I missed)after painting with acrylic paints, because imagine it will probably bubble up. But I did bake after applying some oil paints in small areas, and I didn't notice any reaction.
I think I'll make some weird thing just to see what will happen if I bake after painting. That way I won't be sad if it's ruined!
I suppose the best thing to do is just make sure you won't have to bake again after painting!