water based acrylic paint over a water based latex primer !?

yes you can use the water based paint over a water based undercoat,as it is not oil based they wont be a problem it will key to it, regards bespoke decorators.

yes you can, you can also use oil based paints over water based paints. For example an acrylic undercoat can be painted over with oil based gloss or satin etc. Water based paints are usually not as hard wearing and generally need more coats to get a good finish. The plus side of water based paints is they are less offensive in regards to fumes, dry quicker and can be re-coated sooner.