About a week ago I shot a test spoon with a fresh coat of Krylon 'Fusion', (ya, I know) it already had a couple of coats that had cured out , waited 30 minutes and sprayed it with TS-13, didn't even follow the directions, went straight for a 'wet' coat, came out perfect. All this AND the relative humidity was around 55-60%. I like TS-13. Next I'm gonna try Dupli-Color 'Color Match' clear.