Kay Dee, I think I was posting and testing so much, I might've written the formula on another thread. But, I could be wrong. It was years ago, and honestly I may have lost the formula. I think that they may have had more dye on some squares and less on others anyway. Due to some residue spots on MOM photos, I am guessing that you can dunk dye some of the squares to get that blotched effect. There is one "back skirt" shot from MOM? or skirting danger files of the starwars.com photos that help you see it. I think it was sealed with resolene, but I don't think now that they used atom wax on it. After looking at some MOM shots ~ dsc04228, the weathering just takes on a whole new technique or actually ~ less technique ~ it looks more raw and dusty, not shiny/waxy.