 What is the best supportive surface to use art resin with? I like to use art resin on wood supports Because they're nice and sturdy. If you have a big piece that's on a stretch of canvas It can sag in the middle and that causes all sorts of problems If you do happen to have a piece on canvas you can support it in the back with big pieces of cardboard or wood And you'll be fine. So choose wisely and the sturdier the better