Palladium on vellum keeps me quite busy and I am not quite ready to jump into another process, but the casein tread got me thinking. One aspect of gum printing, that I was never happy with is to try to emulate very thin watercolour washes. When you put thin watercolour layers and mixes on paper the color is crisp and luminous. A weakly pigmented gum layer is dull to the eye. Perhaps another pigment carrier (like casein) might do better in this aspect.
Any comments from experienced casein users?
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