Chimp here,
Got some bad news for you Stig, water based is coming and oil based is on its way out.
With the reduction in all the supposed nasties in current paint several things have happened, oil based paint will yellow quite quickly and in some extreme cases a matter of hours
. Lack of UV light accelerates the yellowing process. Paints are more resiny (is that a word ?) and take much longer to "go off" . Appearances have changed with undercoat drying initially to a satin type sheen, this goes away after a couple of weeks but who leaves something in undercoat that long
Much as it went against the grain I have swapped to water based and I currently use Zinsser Pemawhite Interior Semi-gloss,( I will put a link at the end) this is an American product and I chose it because the states have been oil free on paint for years so I have given them credit for getting it right. The advantages are many.
No smell
No undercoating (it is a self undercoating product so two coats are required)
Minimal prep, it adheres to smooth surfaces without needing the sanding that oil based needs, so if you have a good finish on the work you are about to paint just give it a clean and away you go.
Quick drying, I am recoating after two hours in this weather.
Maintenance, if in a years time you need to refresh your paint you can do so with just one coat.
Disadvantages.
It dries so quick that painting doors can be a problem, I use a 9" foam roller to get the paint on quick and then lay it off with a 4" brush
I water my paint down slightly to give it more open time.
You will need to use synthetic brushes, natural bristles won't work
http://www.zinsseruk.com/shop/Product.a ... 7&pgId=344You will need to order this paint from your decorators merchant, bee and queue and the like won't stock it, even some merchants will try and give you the satin finish.
..