Prep is 99% of painting. Good surface to paint on, all primer'd up and wet'n'dried to nice and flat. But if you're not that bothered, like me - just spray over the top of the mud!
This is good advice!!! Prep really well - and make sure you remove every hint of grease.
Oh and obviously etch primer before topcoat if going back to bare metal.
2k is good stuff but it is deadly in the wrong hands. You need to wear a decent suit and make sure you are all taped up with a good full face mask. I wouldnt spray 2k with an ordinary mask myself unless outside - but then everyone around gets a nasty whiff!
Being really serious here...I painted my trailer with black tractor enamel. couldnt be bothered moving half the garage out to spray (small space) so opted to roller it.
I bought couple good stiff foam rollers (make sure they are good rigid ones - you will know the difference when they are in your hand).
Blimey - it came out REALLY WELL. And I opted for glossy finish. Good even coverage (3 coats).
Tractor enamel was cheap as chips at £28 quid and it is standing up to some serious abuse...my trailer is used daily for logs and tools.
I wanted it cheap but smart and after seeing the abuse its taking I would not hesitate to paint the Landy with it. Although you need to give it some time to harden up - mine was a little soft for a few weeks.
And if your worried about future topcoat reactions, you ca always spray some isolator primer when the time comes in the future.
I find Matt a pig - don't like it at all - like the look just think it always looks 'patchy' after getting dirty a few times and has never truly hardened enough for my taste (stuff I've used anyway).
Satin is nice - still hides some stuff, maybe not as well but the slight sheen keeps things smart whilst being easy and forgiving.
My father in law can paint with roller and brush to an absolute perfect finish!!! But hes a lazy git and although would offer to do it for me...I'd be retired by time he got around to it!
I wouldnt be afraid of glossy finish though - even with few imperfections I think Landys carry the roller paint jobs really well compared to other vehicles...its the whole working vehicle thing isint it!