Block walls sealing

Hi, not sure if u went @ ur block wall yet but I had the same dilemma in my studio build, here is a link to what i did - viewtopic.php?f=2&t=14252 After I waterproofed the wall with that thick black rubbery paint a plastered it with a thin layer of gypsum render, there was a bit of work in it but the wall is definately sealed keep up the good work hally