Yupo paper is a wonderful surface to work on with many media, including watercolor. The most interesting properties of yupo paper to me are the fact that when the paint dries, a lot of textures are appearing and also the fact that if you make a mistake, you can just take a wet cloth or tissue paper and wipe off the paint.
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If you don’t have access to Yupo paper, you have some ways to emulate what it feels like to paint on yupo paper. For this you have to make your paper water resistant.
All you have to do is paint a layer of gel medium on top of regular or watercolor paper. The gel medium, once dried will make the paper water-resistant.
Paint a layer of gel medium, using a soft brush so you don’t risk damaging the paper.
You can then paint with watercolors on top of the gel medium. You might see the brushstrokes that left an imprint on the gel medium because the watercolor will accumulate in these ridges, I like that effect.
This surface works well for painting wet on wet, colors will mix and dry with lots of textures.
If you paint the medium on top of a graphite drawing, you can still see your drawing when painting but it won’t be erasable. I don’t mind that as I like when the drawing is visible and part of the painting.
As with yupo paper you cannot really layer colors as they will lift when brushed over,
but you can try painting colors on top of each over and let the mix on the paper until you are happy with the results.
You can’t layer colors but you can paint wet on wet or wet on dry. Here the skin is painted wet on wet and the features are painted wet on dry.
You can easily lift off color with a wet tissue paper.