Woody, try putting the gum arabic on a peice of Vellum or similar paper.
Tape the vellum onto a plate, rub the gum arabic on it and let dry. After the
paint is dry peel of the tape and put the paper on a piece of matt board
(slightly bigger than the paper) and run it through the press. I use createx
paints but you can use anything you want an it will lift easily.