Dry wall Prep for Ceramic Tile
I am planning a ceramic (or similar) tile back splash over a new kitchen counter top. The wall behind the new counter top has wall paper and some rough wall board that was behind the previous 4" high back splash.
I have one hole, damage from mounting the new counter top, that is about 2" by 3", not a rectangle, and a few rough areas (missing top layer of wallboard paper) and small dings. I plan to patch all with hardware cloth (hole) and joint compound. I will carefully level and sand all areas. Do I need to prime and paint the area, especially the patches, before applying the fast set (mud) to mount the new tile?