Bar Keeper's Friend

Guess what! I stained our stainLESS sink with an acid. I tried wiping it with WIPE OUT and vinegar but to no success... I searched the net and found this product called Bar Keeper's Friend. From their comments, it sounds very convincing that it will work in my sink. Unfortunately, from where I am now, it's not locally available. What should I use to remove the stains? It looked ugly, as if there's mud dripping all over my sink! GGGrrrrr!