I learned a good lesson.
A while back I was very impressed with the GW paint that creates cracked earth (Agrellan Earth). As usual, I was not so impressed with the costs of GW paint, so I looked for alternatives. I picked up this:
Since I'm working on a comission I thought it would be a nice time to create dried desert earth with it. So I whip up a tester base, mix it with brown paint and apply it very thickly.
Took over a day to dry and didn't crackle at all. Kim then told me that they used the stuff in art class and I had to apply a thin coat, and paint over that. So I did that, and got something like this:
So, on my shopping list: Agrellan Earth