You’ll need to prepare a rigid surface for painting with casein. Casein is a great underpainting medium for egg tempera and for oil. Below are some recipes you’ll need. In place of the gesso panel, you could also use paper mounted to a panel. The in-process images below show a painting made on watercolor paper mounted to an MDF panel. You’ll see the texture of the cold-pressed watercolor paper showing through, as the paint is thinly applied.





