Roger,

 

It appears to be an iron stain, did the customer set something on the top that was metal?  The tops have a good shine, did anyone use steel wool on this counter?

 

If you cannot get answers to any of these question then you probably need to assume these a iron or rust spots and you can either make a poultice using Iron out or you can order RS2000  made by Alpha. StoneCre Central I think carries this product or can get it for you.

 

Should you decide to make a poultice using iron out be sure to wet the spot with water prior to applying the poultice. I have seen when the stone is not wet first when you apply the poultice during the process the stain actually moves to the outside of you poultice causing a orange colored ring around the poultice and then requires an additional poultice.

If thestain appears to be deep you may want to hone the stone prior to applying the poultice.

 

Another thought, does the customer have well water? If so do the water contain iron? If the well water has iron and the water sets on the stone long enough the iron could stain the stone.

 

 

John E. Freitag

President/Director

The Stone and Tile School

Office 407-567-7652

Cell 407-615-0134

jfreitag@thestoneandtileschool.com

 

 

www.thestoneandtileschool.com