Can you mix casein emulsion with tubed watercolors?ApproveRejectUn-ApproveSubscribeUn-Unsubscribe
Question asked 2018-03-10 13:41:23 ...
Most recent comment 2018-03-12 22:17:18
Per the Richeson site, to make your own casein paints with your favorite pigments: "Mix Shiva Casein Emulsion with powdered pigments: Spray some water on your palette and scoop out the pigment with a palette knife. Mix thoroughly into a paste and add a few drops of Shiva Casein Emulsion. Mix again, and you're ready to paint." http://www.richesonart.com/products/paints/richesoncasein/richcaseinfaq.html
I'm wondering if, instead of mixing the casein emulsion with powdered pigments (which I don't have on hand), I can mix it with the array of tubed watercolors in my favorite pigments. These tubed watercolors obviously contain other things besides pure pigment, such as gum arabic and glycol.
Answers and Comments
You probably could? Although I would check the pH of the casein paints you are using...some of your watercolor pigments may be sensitive to higher levels of pH (fresco painters know all about this issue).
Both Ralph Mayer's book and Mark Gottsegen's text list pigments that are sensitive to high levels of pH. We can also reach out to our contact at Richeson to see if they wil answer your question on this forum.
Also, one of the virtues of casein is that over time it becomes insoluble in water. Using watercolors rather than pigments will negate that to some degree.
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