Hey, this is the conversation that I was looking for. I have many washes and glazes in the past with gaming miniatures. However, I'm working something much larger with large flat panel lines. I typically use Ink, Future, and Water for my washes. It really pulls the pigments into the cracks, recesses, and along corners. However, this kind of wash can be a real pain when it comes to large flat surfaces since it can pool and can also build up along the bottom edges of panels that angled toward the ground. Finally, once this stuff dries, which is usually pretty quick, it is near impossible to clean up or get off the model. Again, for gaming figures or anything n-scale or smaller it works out very very well and I will keep using the technique. I work with Acryllics.
However, for the larger projects I need something that will behave similarly but with easier clean-up than what Future will allow. I found a few videos on You Tube that describe a pastel wash: water, pastel chalk, and a hint of dishwashing fluid to break the water tension. The best part is that it will wash off if you screw up. I thought I had it made. I tried it out on a test peices and the initial results looked pretty good. That is until the fluid dried and left behind the pastels. The pastels would have look great had they not pulled away from the corners of the panels or the 90 degree corners where I wanted shadows. I did gloss coat the model before trying this process. Thanksfully I could simply wash off the mess.
So, my question to you folks, what else can I add to the mixture other than soap that will break the water tension and allow the fluid to deposit its pigment in the cracks and evently on the panels without creating this pull away to the middle look?