Originally posted by TAB Studio
Be careful ! if you live in a high humidity area spray is not the way to go...many efforts and many poor results...
Isn\'t that the truth! Up here in Seattle in the winter, it\'s really a bad idea to spray prime--I can never get consistent results. In summer, I can usually manage to get good spray undercoats with Rustoleum Sandable Primer, but not in the \"rainy season\" here (which means I get like 6 weeks when I can spray prime

).
VMC Foundation White is really good stuff, too.
Recently, though, I\'ve started playing with black primers again, and that\'s a bit harder to find in brush-on. I have, however, found that Folk Art Glass & Tile Medium (thinned 1:1 with water) with a drop of VMC Black in it makes a really bitchin\' black brush-on primer.
I guess a lot of people over at the mini-painting Yahoo group use this stuff as primer and top-coat sealant. So far, I\'m pretty impressed with its primer-ing (???) capabilities, but haven\'t tried it as a top-coat.