Hey thanks for the reply's guys.
@Einion.
We are doing all this by hand, so no rolling mills(yes it takes alot longer, maybe later on if we get people who like the product) Dispersant isn't Necessary, it's just convenient. It's really helpful to use dispersent on natural pigments though. But since we're using mostly oxides, they tend to disperse quite well in water. The only costly thing is the acrylic polymer emulsion(the resin) but simply put, it's either a binder, a binder plus medium, or medium. the best option is the middle, as this gives you complete control with how the product turns out. We are doing the colour matching by eye. We have a lot of templates to follow as well, this colour plus this colour makes this colour, and then you just gauge from there what else you need to add.
@Beamo. As long as you use it with a controlled hand, there are no tide marks. I have encountered a few tide marks, but those were due to lack of control. To optimize the experience with the paint, just brush on and cover the WHOLE area you want washed. No tide marks are left that way! If you use over metallics just use thin layers, or else it will create a.. hmm how to word this, an effect as though you had covered it in pigment? like dry pigment powder for weathering. Which, if you want that look, then go for it!
the rock idea seems nice! the only problem i encounter, like beamo said is the running out of names. And the 7 paint idea is just for the first set, as mentioned earlier. I also mentioned that after that, we would work on creating shaded sets of a particular colour like. Dark blue up to a light white. as a set.
anyways thanks guys! keep em coming!
Gary.