I would cut it first with a rigid driver with a minimum of 120 metal mainly to give all fillings a good scratching so the fills will adhere to the old fills that sunk. Fill all the larger holes with a color matching epoxy and float the smaller holes with un-sanded matching grout mixed with latex. Cover with that brown roll paper if the home owner needs to use the floor. Come back next day and start your cut with 50 resin (if epoxy was over filled in bigger holes you need to start with 120 metal again, but try staying out of the metals if possible) and work up to desired finish. Spot fill any new holes as described before. Good luck

Sent from  Randy Frye at Cleaning Edge 

On Jul 12, 2012, at 7:55 PM, Baird Standish <bairdstandish@gmail.com> wrote:

I am doing tests for a project where I have to remedy a marble floor that 1. was over crysrtallized, 2. was not prepared at a low enough grit to remove pits and scratches and 3. contains many poorly colored epoxy patches, many of which level out below the surface of the marble creating ugly indentations.  I came up with a good looking program honing the floor to 200 and then finishing off with an 800 grit honing powder.  This reduces the contrast between the epoxy patches and the rest of the floor.  But I still need to blend them in seamlessly.  For the small ones I have thought about applying a faux marble treatment to the surface (I don't want to remove an endless number of patches-but have never done faux marble painting short of using pantone pens).  The larger ones and sunk-in ones need to be removed.  My idea is to mix in some marble dust from some old tiles with epoxy, apply them to overfill and then grind them down with the rest of the floor.  Another idea might be to grout the holes like travertine so they are not as glossy.  In any event, it is really difficult to get a smooth even patch that doesn't stand out.  And it is really hard to get those other patches out.  Any suggestions would be greatly appreciated.  I attached a photo below where you can see what the issue is.
<Marble pic.jpg>

From the desk of
Baird Standish
Managing Partner
Facility Specialists, LLC
15 West Highland Ave.
Philadelphia, PA 19118
Phone: 267-331-5369
Fax: 267-331-5771

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