The Krylon & Rustoleum are in qt. cans.I pour into a small dipping tube.The only reason I use a sealer is so the paint won't chip off as fast.I use Paltinum fletch-tite and it adheres to the sealer just as good as on non-sealed paint.The Testor's is a small model paint kit I get a Wal-mart.It has about 8 differant colors & thinner(about $7)