2. Massage the gum arabic medium into every area of the paper. Work it until it almost feels dry and is no longer goopy-feeling or sticky. This could take a couple of minutes so be patient. Rub gently or you might tear the paper. Once the gum has fully soaked in, it might make a few "watermarks" or blotches on the copy (Figure A).3. Spray-mist your photocopy with water, then dampen a sponge and gently wipe it over the image. This step will remove the excess gum arabic from the toner areas of the copy. Be careful not to scruff the paper. Wipe back and forth gently a couple of times and that should do the trick.
4. Squeeze out a bit of oil paint onto the paper palette and add just a tiny drop of linseed oil. If the paint is very dry or clumpy you might need to add a little more linseed oil. The oil paint should be smooth and spread easily with a brayer.
5. Work the paint and the oil together with the brayer without mashing it into the paint. Let the brayer do the work and rub it gently through the paint and oil. Brayer through the paint five to eight times in different directions to get a nice even spread of paint on the brayer. The paint should have a suede-like texture.