WHAT IS GUMOIL?
Gumoil is a photographic printing processs using oil paints.
A same sized interpositive is exposed, by UV light, onto watercolour paper
coated with a light sensitive gum arabic solution. The gum arabic hardens in varying degrees
based on the densities in the interpositive. After exposure the paper is washed to remove
any coating not affected by the light. Oil paints are then applied, sinking into the paper where raw and
being resisted where the gum coating remains. The print is washed several times, slowly removing
more of the coating and adding more paint after each removal, thereby building up the image.
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