CorStone Advantage Series sinks are constructed from their popular 3.2 Acrylic, engineered to provide everything you expect from a quality product and more. Dropping heavy pots and pans from soapy hands won't dent or chip your CorStone sink. Easy on china and crystal too! Non-porous acrylic is impervious to staining. CorStone sinks stand up to tomato sauce, red wine, even iodine, when other sink materials discolor. Pots and pans will not leave unsightly scuff marks at the bottom of your sink.