I am renovating a kitchen and have put up repair plasterboard and filled the seams and screw heads.
There will be a splashback that goes up 20cm above the countertop, and above that it will be painted.
Two questions: can you paint directly on the plasterboard? Or what is the best way?
Then I have filled over the screw heads, but I am worried that they will show through. How is this best handled? Is there any fabric/tapetachtige that should be put up before painting? I want a smooth surface.