T
Time's Ran Out
Just to be clear - and everyone can have their own procedure - all stone is different .
Imho - if you know your stone you will not have the issues!
And seal when fully dry!Now having fixed a few stone floors over the years I'd put my 6d worth in.
White Limestone, Terracotta and Encaustics I always seal as I take them out of the crate. Honed stones I work clean ( not as clean as my son apparently) and seal when fully dry 48 hours later.
This particular marble I would have worked clean but sealed before grouting.
Not that anyone listens to old people these days.
For a number of years before I sold tooling I owned a stone import business. We predominantly imported marble and limestone from Portugal and Spain and without exception every crate or box of tiles we ever handled would have been packed at the production factory whilst it was still wet.
This is the main reason why it's not generally sensible to seal any of these products in any way before they are fitted and allowed to dry naturally. As in most cases you're trapping in production moisture on top of moisture being drawn in from whatever adhesive is being used.
Also consider that an already moist stone is not going to absorb any form of sealant to a degree that will allow it to perform to it's design standard.
Imho - if you know your stone you will not have the issues!