We were not in the country when our black
Tao Silestone was installed. we purchased it in France, but it was installed in our house in Spain. I don't know if I need to apply some kind of sealer or oil. It seems to acquire watermarks and rings from glasses pretty easily. It is matte black,but almost risks looking dull. Can anyone help with some suggestions on how to care for it, and how to clean it. I wrote to Silestone but have heard nothing.