Crystallization can ruin your marble, it takes longer and costs more without ANY benefit over standard marble polishing.
It creates a problematic hard chemical shell on your marble trapping acids (used in the process) in the marble. It will make the marble shiny and it seems this is the "proof". But the shell also keeps the marble from breathing properly, which could lead to your marble simply falling apart.
So, understand once you crystallize you no longer have a "marble" surface. It becomes a "chemically manufactured" surface. Traditional, proven methods for marble cleaning, care and marble repair can no longer be used. You are stuck having to maintain the chemicalized surface.
Yes, I know it's been around for a while, but that doesn't make it good or beneficial. Agent Orange has been around a long time too.
The people that have it done simply don't know any better (no reason they or you should of course) and get sold by the sales pitch which seems fine and dandy.
There are also problems with formula compatibility.
Example: You have your floor crystallized then a couple three years later when this chemical crust that isn't as durable as marble starts to look crappy you have it crystallized again only the first guy who did it is out of business or not available so you go with someone else who uses a different formula.
Well... his formula may not work with the first formula and the crust will have to be removed (grinding it away just like standard re-polishing) before the new formula can be applied. Just useless nonesense.
There are proponents out there and the sales literature makes it seem like it's the latest greatest thing, but the main reason they like it is because it requires very little experience or knowledge of marble.
Traditional marble polishing requires real skill, knowledge and experience.... the art of a true craftsman.
Crystallization requires virtually no skill... no more than cleaning a carpet, so from a business standpoint it's simply easier and cheaper to find/train technicians. So, marble cyrstallization is easier to perform.
But if they screw it up while crystallizing.... your marble may be toast.
This will NEVER happen with standard marble polishing. You can always fix a mistake with re-polishing, you never change the chemical or physical nature of the stone and it makes it nice and shiny too.
So ask yourself... do you want a craftsman who knows how to properly maintain your marble in optimum condition over it's entire life.... or just anyone capable of pushing a machine around?
Also, if you etch polished marble... a normally re-finished marble... all you need to do is to properly apply a good marble polishing paste and viola... it is gone... all shiny again. So, even on this point there is no advantage to crystallization.
If my arguments aren't enough to dissuade you from doing it on your marble floor, then consider that no factory in the world uses crystallization as a method to "polish" the stone. They all use standard grinding and friction to polish marble and make it shiny. It's simply the best way.
Standard re-finishing / marble polishing provides "like new" results without any of the risks and problems associated with crystallization.
There are plenty of stories and myths floating around about marble and natural stone care and repair that are just bogus. It's unfortunate for consumers because it's only natural to think that anyone selling or installing marble ought to know what's right, but they often don't.
Marble Floor Maintenance:
Why Crystalizing Should be a Crime!
Florida Sanitary Supply Association
State Governing and Advocacy Association for Contractors, Distributors and Manufacturers of Cleaning and Maintenance Supplies
See What the FSSA can do for you.
See What the FSSA can do for you.