Lighter stones staining problems

We have used the lemon juice/oil test on venetian gold, santa cecelia, giallo ornamental, giallo portofino and a few others. These stones all passed the lemon juice and oil tests. We added a new test with red dye food coloring. The red dye showed relatively rapid absorption into all of these stone and appears to be a more sensitive test than the oil, particularly in these lighter colors. We are beginning to believe that there aren't any good lighter warm yellowish or brown colors of granite, at least that don't need to be sealed. Do you know of any? Thanks, Wendell

 

Dear Wendell;

With red food die the only thing that you can not stain is probably stainless steel.

Moreover, if the lemon juice and the oil were not absorbed by the stone it only means that the stone can't be sealed. In other words, the sealer will not go inside it – period. And it is understandable, because although all the stones you listed are naturally on the absorbent side, they are among the most likely candidates to the resining process, which permanently offers the best sealing performance possible.

So, if you plan to use food dies on your countertop, you already know what kind of surface you have to choose…

May I ask you now to please read and e-sign our Statement of Purpose at: http://www.marblecleaning.org/purpose.htm?

Ciao and good luck,

Mauri z io Bertoli

 

www.marblecleaning.org – The Only Consumers' Portal to the Stone Industry Establishment!