One of our artists plays fast and loose with her substrates sometimes. She's brought in six small encaustics on paper. Just, the wax right on printer paper. They look really cool, but is that even a thing? It seems like it could flake off. I take what works and send back what doesn't, so haven't put them out in the shop. I'm used to thinking that encaustics on wood need encaustic gesso underneath, so it seems like paper might also need something. Or at the least, is too flexible a substrate. What say?