[ajgriff]

Sprayed acrylics have some distinct advantages because of the much shorter curing times (days rather than weeks). This is partly because each layer has to be very thin to avoid runs and partly due to the fast evaporation of the solvents. However, it's more dificult to arrive at the depth of gloss that can be achieved, albeit laboriously, with polyeurethanes. Personally I wouldn't use polyurethanes these days. Probably just laziness on my part although it's worth remembering in the context of this forum that most 'woodies' were originally spray lacquered at the factory.

Alan