This can be almost impossible to remove..First you must remove the silicon otherwise it will keep bleeding through. I have had some success with methylene chloride in a poultice. Sometime you can burn it out with a torch..but you have to be very very careful not to get the granite too hot.

On Thu, Aug 12, 2010 at 8:10 PM, info @surfaceshawaii.com <info@surfaceshawaii.com> wrote:

I have an issue that has come up recently involving a newly installed a light tan colored granite counter top and an under mount sink. It appears that when they installed the sink, they used some sort of clear silicone that they claim to use all the time and it turned the granite dark and began to come up through, to the surface of the granite.

Now, around the sink, about 2 inches out is stained really dark. I have tried to use a product from Prosoco called Dicone NC9, which is a silicone digestant, but with no success.

Does anyone know of anything else I could try?

Thanks
Greg
Surface Solutions Inc.

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