I am having a new kitchen fitted, but intend to remove the tiled floor
exposing the concrete base before the new kitchen fitting starts. The tiles
do appear to come away quite cleanly from the floor leaving the concrete
quite flat and untouched.

As the kitchen will need to be used before fitting, during fitting and until
SWMBO decides on a new flooring, can I seal the exposed concrete floor to
stop dust getting throughout the house AND maintain a suitable surface to
take new floor tiles. Would plain old concrete sealer be OK, how about
diluted PVA ?