Gary:
thank you for your detailed reply!

(and for confirming that this is a mind-soulfull process)

I had trouble getting onto that link you gave, though found many other links for POTASSIUM SILICATES and its a little overwhelming figuring out where to go.

I'll look to see if I can find a source locally in the Phoenix area.

Being optimistic that I do find a local source within a week or so, do you have a recipe that you prefer to use? If so, can you share that with me, the proportions of ingredients, etc.? I am very appreciative of anything you can contribute to my domestic project. I do enjoy the physical part of plastering the walls, sculpting them to my sensibility, and I'm very much looking forward to painting the colors of my childrens' and my own dreams on them as well, in the weeks to come, thanks!

all the best,