i'm also currently doing concrete screed flooring. at the moment, it looks like just one colour grey only, which is not what i wanted (or what my ID showed me).
now she's asking if i want a matte or gloss finish, but she's pushing glossy. reasons include "the flooring contractor doesn't recommend matte", "they don't use the matte finish anymore", "it is less protection", "will have obvious joint lines", "after a while will have white patches". i've seen matte or low gloss finishes online and in magazines and would very much prefer not having a high gloss finish.
has anyone else done a matte finish before? did you notice any joint lines or white patches? are they obvious/ugly? are there any other pros/cons that i may not have considered? i've been googling for information but there doesn't seem to be a lot of information about these problems. please help!