I currently have an area of wall that has been skimmed with new cement - it has not been smoothed, so is fairly rough (and I guess porous). I need to apply a bonding coat of plaster (before adding a skim finish).
Do I need to do anything special, do I need to add a PVA, if so how many coats?
Do I need to do anything special, do I need to add a PVA, if so how many coats?