You can't achieve your goal of "no striping, ripples, runs, etc." with a brush or roller.
Yes, Rustoleum drys very slowly as stated above, AND you can still scratch it with your fingernail a week later.
20 cans rattle cans @ $6.95 = $140. A quart of PPG Concept $139. Then there is always the discount autobody chains with the $399 specials (at least they don't have brush marks).
