To seal or not to seal

[rj1884]

Good morning. A bit of advice please. Have any of you worked with stontech 1.0 fine porcelain stoneware tiles. I've looked on there website (floor gres) and unless I'm no looking in the right place I can't see whether they need sealing or not.
The tiles in particular are the stonbeige 1.0, 60x60 and will be fixed in a wet room area and other bathrooms.
Thanks in advance