Hi Guys
I can suggest a solution where the tiles wont need any sealer, and they can still be maintained on a daily basis without any soil build up. use waffle microfiber floor cloths slightly damp with water and telescopic mop handle with 30cm frame, and a low ph floor cleaner between 7 to 9 on the scale , these floor cloths are far superior to conventional string mops, or microfiber flat mop pads, we have recommended this new way to maintaining hard floors to many of our clients and they cant believe how effective it is and that finally they have a solution to the problem of soil build on hard floors.
Regards
Tadgh