Oil paint films are brittle- canvas is flexible. That should be a no brainer- acrylics on canvas, oils, wax on panels. SOOOOO--- yesterday I held my breath while I transferred the painting from a canvas to a cradled panel. No small feat, as this painting is 48"x36".
When I took the painting off the stretcher, I lined the stretcher up with the newly purchased panel and found about an 1/8" discrepancy- panel slightly bigger. I prepared the back of the panel 2 times with Lineco PVA glue and the back of the painting 1 time with the same stuff. Yesterday I lined up the painting, laid glue down in about 12" sections, as I laid the painting over the glue, with freezer paper on top and used my new $ 45 heavy roller to press canvas surface onto the panel. When I was done, I applied as much weight as I could on top-- buckets of water, rocks, boards, and left it for about 5 hours. It looks like the adhesion is good.
This morning I had to make the decision to slice off the sides of the canvas- I couldn't figure a way to apply the glue to get good adhesion. So, I turned the painting on panel face down on a smooth surface of freezer and wax paper, coated the back of the panel with PVA, then took a new razor and sliced the sides of the canvas off so the panel edges would be clean.
I just finished mixing a stiff paste of marble dust and stand oil and applied it to the sanded, chipped areas. Now it has to dry, is hanging in my hall wall. What a process! I don't want to repeat this process again!