I am applying primer to a stippled ceiling in my back landing/stairway. I do not think it has ever been painted before (hence the primer). It is peeling off in some areas…why? and will another coat help this?
If the ceiling has never been painted it could have a powdery surface, this could cause the peeling. Surface contamination could also cause peeling.
Another coat will help the areas where it has peeled, acting like glue. You could also thin your primer a little to make it easier to apply.