Review (4/5): Works great on clay
Frankly, I am rating it as a substitute for Frisket for watercolor masking, which is not it's primary purpose. I ordered empty nail polish bottles, and put some in those to paint onto whatever I wanted. I use it to mask areas on paper as well as on clay. Works great on clay, but one one type of watercolor paper, ie. the postcard blocks and one other watercolor paper, a light blue (actually a pretty nice color) is left when the latex is removed. However, when you don't want any color on the masked areas once the latex is removed, this could be a problem. On another brand of watercolor paper this did not happen. So I ordered the "white" latex body paint and it works great.