Ladies and gents.... Screeded a kitchen today with NA but will need another coat next week to build up another 3/4mm so im assuming I can go straight over the top of the NA thats down without priming? Never had to do 2 coats of NA before, only with stopgap/screedmaster and both had to be primed in between coats.
Na will be fine over na. Same compressive strength. I would prime though. It will flow better and stop pinholes.