I have a BAL WB1 tanking kit for a bath/shower enclosure. 1 wall is Aquapanel and 2 walls are plaster board. I read in a previous thread that aquapanel should be coated with tile adhesive before tanking. Is this correct. I am going to use BAL adhesives and grout for the light 6mm ceramic tiles but I have some left over Mapi Keraflex I could use before tanking if required (is it suitable). I have attached a pic of the corner interface if it helps.