
Over the years I have managed to use rattle cans with varying success on minor repairs but as my van needs so many repairs it will need pretty much a full respray but panel by panel, only because I don't have the time to prepare everything and respray the whole van in one day.
At the moment the van has been attacked with an angle grinder to get back to bare metal and I have just primered over the top of this to try and protect it but I understand that primer is absorbent and there is signs of rust already coming through so I need to rub down, smooth, primer, flat and get a coat on within one day, if that's possible.
Because of the amount that needs doing I have bought a small compressor and spray gun and have a tin of 2k paint with hardener.
Now I need some advice. Bearing in mind I am spraying on my drive how do I get the best finish? Any tips on spraying techniques - Any problems I should foresee? If I am doing a whole panel do I need to prime the whole panel or is it enough to key the paintwork that is there?