Why is it that in so many videos I see involving a wet palette, the paint behaves way differently than on mine? The paint here is pulling back in on itself after it's spread out with the brush. On mine, the paint just sits exactly where I put it. I'm guessing it's a property of the paper they're using, but I have no idea what the difference is. It almost looks like what I'd expect if the paper were waxed.

Why is it that in so many videos I see involving a wet palette, the paint behaves way differently than on mine? The paint here is pulling back in on itself after it's spread out with the brush. On mine, the paint just sits exactly where I put it. I'm guessing it's a property of the paper they're using, but I have no idea what the difference is. It almost looks like what I'd expect if the paper were waxed.