Well, it is the same stuff, its just the maker name, Corian, is a lot more renown. Same, I don't know, sort of plastic mixed with something else that creates a solid surface and is easy to mold, but DON'T PUT hot cookware on it. My wife was just about to place a hot pan from the cooktop into the sink, and I caught her. She thought the sink was like the one we have at home.
Mike