ive found halfords rattle cans to be good
id rub down between with 1500grit
as long as possible between coats
get a light dusting on the tubes to start with , dont try to lay it on too thick . start in the hard to get to areas like behind the headtube between the top and downtube , bottom bracket etc , then go along the tubes , less likely to cock it up then
same with doing the inside areas like the stays and underneath then finishing with good long strokes over the whole thing , looks more even
i can spray paint to a decent finish but i always cock up the clear/laquer so if anyone can tell us how to do that properly it would be great
"It also has a seat. I don’t use it, but you probably will for the first few years until you build up the muscle."