Can Silgranit by Blanco be kashered?


Yes, it is granite bound with a synthetic/acrylic material (see  http://bit.ly/eiaREP). The reason such a mixture may be kashered is because Shulchan Aruch 451:8 rules that stone/granite may be kashered, and the position of the cRc and most American hashgachos is that synthetic materials may also be kashered.

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