Can I apply Earthaus Plasters over previously painted textured drywall?Updated 2 years ago

Yes.  

Due to the variable nature of previously painted walls, we always recommend a fresh coat of primer with our Primer Grit added to create an even substrate ready for plaster.   Many previously painted walls are also textured.  Depending on the depth and size of the texture, the walls may need to be skimmed before priming and plastering.    In many cases, the texture can be covered by applying an extra coat of Earthaus Sand or Stone plaster.