JCCLARK wrote:It will go on a lot dryer, paint won't flow out,
leaving a rough surface.
With a conventional Gun yes! ( If we are trying to use say a 1.2 with Hi build primer most definitely! BUT could you get away with a 1.4 if the same material is reduced? I wouldn't do it but I am sure someone will say they have done it, again I wouldn't do it. The whole idea behind Hi build is to Hose it on to sand it off any way lol.
BUT with The epoxy I use a 1.8 is recommended but I spray it with a 1.4 all the time.
So I think the real question should be how small is too small when X? material is being used.