if i was to go out and buy an air compresser and sprayer where would i get that colour paint from for my car? halfords? is it ready mixed?
go to a local bodyshop and ask them who they use, thats the best way to get cheap paint locally. you can then order paint by code (also give paint name).
if you buy cellulose it will come as pure cellulose paint. you then need to mix it with thinner which you can also buy from the paint supplier. cellulose is easy to apply, but it does not leave a very good finsih, so it requires a lot of work to make it smooth and shiney afterwards. this is best for basic solid colours rather than modern metallic/pearl colours.
2k acrylic (2pack) also does not come premixed (you buy paint and hardener in seperate tins). you also need special thinner. it does a much better job if you get it right, but its harder to spray, and it can be dangerous stuff (should wear a ventilator, although i never have). it is good for metallic finishes.
i'm not sure if either of those types are still available since January. I know 2 pack isnt, but i think cellulose is. i've only ever used these types of paint.
water based colour coats are what you expect to see mostly these days. i've never tried it myself because i've been told its very hard to do. the colour coat still requires a 2 pack laquer to be sprayed seperately afterwards. i'm not sure what other laquer you could use (since you cant get a waterbased laquer) so i guess 2 pack laquer is still allowed? either way, water based paint is not for the DIY sprayer from what i've been told, so if both cellulose and 2 pack is now illegal, the days of DIY resprays may be over.
rattle cans (aerosols) use enamel. i think this will still be available, but you cant buy in bulk for DIY use, and it costs a fortune, and is too soft and easily removed.