Posted this in my own build thread but i wanted to make sure all the foam guys saw this. picked it up from michaels for $6 Its designed to seal styrofoam for painting, and as we know eva is a whole lot less porous than sytrofoam. Only downside so far is it doesn't have any kind of self leveler so you have to give it a light sand, other than that the test pieces ive done haven't cracked or bunched up like it does with plastidip. enjoy!!