I have been emulsioning my bathroom walls which were Gyproc'd .One was was a problem .The surface has a lot of areas which are sort of pinholed and additional coats have not solved this .. I can't be sure but I might have used a different roller for this wall on the first coat but in any case i have had to sand it smooth in prep for coating it again .I used Wickes Trade Matt White Emulsion but have run out so was wondering if using a different make would be OK or if it would cause problems ?.
Stuart