So, I’m a huge art media nerd, and I’ve spent my whole life researching and experimenting with different art supplies and techniques. There are countless variables depending on the surface you’re using, type of paint, even brands within each category. I was looking at a little Yona foot today and how I’ve written off the dirty creases as something that I couldn’t fix…when it hit me. GRANULATION!
Granulation is the tendency of certain pigments to separate and leave visible sediment when mixed with water or another thinner. It’ll look grainy. Watercolor artists use this to their advantage when creating an illusion of texture. For us though…it’s no bueno.
Two of the most commonly used granulating colors are Ultramarine Blue and Burnt Umber. I’m thinking that Yona’s weird, tacky/sticky, somewhat textured German vinyl is grabbing onto that sediment and making it extra visible (ewww)
It made me think…it would probably make life a lot easier for us if we used non-granulating colors, especially in areas like creases. I’m going to try switching to Pyrrole Red and Phthalo Blue for my creases. Unfortunately most earth tones (browns) are somewhat granulating, but I’ll be doing some tests to figure out the best combinations. In addition to granulation I’ll be considering the paint’s opacity. Some pigments, like Titanium White, are naturally opaque- where others, like Zinc White, are transparent. You can force titanium white into transparency by adding a thinner, but it’ll always look more chalky than Zinc White.
Unfortunately Genesis colors and pigments are pretty limited, but a lot of this info might come in handy for air dry painters I’m going to do some experiments with Genesis on paper and post them here later. If anyone is interested in nuts and bolts, these sites are great resources. They’re about watercolor, but we use our paint like watercolor-- super thin. So the same ideas apply.
(Unfortunately Genesis and acrylic are not labeled like watercolor)
Some nice color mixing charts:
Characteristics of a few earth tones- natural and synthetic:
Here’s the offending foot that got me thinking It also has some lovely new bright orange blemishes that I have determined were created by fly poop. Gross!!