Hi, Thanks to the advice I received from a number of you all, I successfully patched a number of holes in an old terrazzo floor (I used stones and matrix supplied by terrazzo and marble supply in illinois).  However, due to my ineptness in cutting the sides of some of the holes straight down, some of the matrix on the edges of the patches did not hold the stones and so there is some unevenness in some of the patches.  My brilliant idea to fix these is to attempt to paint little cream colored patches on the epoxy matrix around the edges to do achieve a better visual blend.  Was wondering if anyone out there has attempted this and what kind of paint should I buy. 
Secondly, for the future, what sort of tool is best for cutting straight walls in the patch holes?  A worm drive is too big and doesn't cut curves, and the dremel or drill just doesn't budge the stuff. 

From the desk of
Baird Standish
Managing Partner
Facility Specialists, LLC
1616 Walnut St.
Philadelphia, PA 19103
Phone: 215-732-7505
Fax: 215-546-9160