Any info gratefully received! I have a ceiling that an electrician said was the oldest plasterboard he had seen (house is 1950s). It is very hard and perhaps that is why it seems impossible to hide the joins. Even the ceilings I have had re-skimmed have cracked again - the house must be going walkabout! Anyway, my question is whether I could use plasterboard mesh adhesive tape over a painted ceiling. No matter how much I rake out the crack and how long I spend filling and sanding, eventually it re-appears. At the moment I don't want to paper the ceiling. I think I have tried most products and don't really think they do what they say on the tin. Would it make much of a bump covering over the tape? Thanks in advance.