Hi guys, How long do I have to leave rattle can clear coat to cure? Even though I'm only putting on 2 thin coats a day, drying over night before adding two more etc and then leaving for a couple of days it's still too soft. It's fine for wet and dry but when it comes to polishing, even though I've used paper towel under it, it leaves an impression. It's really annoying. How do I get this buffing/polishing clear to work? Many thanks.