u/Decent-Improvement80

Hello, I’ve painted before (single panels and touch ups on rust repair mostly) but I’ve only ever done one colour, but for my current project I’d like to do a 2 tone on the whole truck but no one can tell me when I should tape off my first colour. So that’s the question, should I just wait an hour or two till it’s tacky? Should I let it fully try and then wet sand before clear? And then also what tape should I use if I’m masking over tacky paint? Any advice is appreciated