I imagine that you were talking about a cast-iron sink? There are cast-iron sinks refinished with an epoxy of some type, they may last a year, I would recommend using grates to protect the bottom of the sink. Reportedly there is one person (I believe located in Louisiana) who can truly refinish a cast-iron sink and make it as good as new using the old processes. I understand the wait is three or four years.

I live in the Sacramento, Calif. area and need a fix now or replace the sink in our rental. To replace the sink involves 30 year old tiles that no longer exist.