[Tom Edgerton]

Michele--

I don't paint very thickly, so offsetting onto the back of a canvas on top of the painting(s) don't seem to be a problem. If it happens a little, I don't worry about it.

This worked for me when I came home the day after a workshop. The paint had set up overnight. It was still wet, but not freshly painted and still sloppy. I don't know if it would work if you left a workshop and had to run for a plane or not.

If seepage into the above layer is a concern, could one put a piece of plastic wrap on top of each painting in the sandwich?

Still experimenting--TE