What kind of sink is this and how would I restore or clean it??
It looks like a galvanized 2 part commercial sink. It’s very very old, as they’re required to be stainless steel in restaurants for at least 60 years now.
If it is galvanized, you can’t be too aggressive with the inside, as in don’t abrade it with SOS or Brillow pads.
Also don’t use vinegar on it, as it breaks down the zinc.
work with degreasers.
It's a soapstone sink
It looks like a galvanized sink. This link gives you several steps to take to get it clean, starting with soap, water, and a soft-bristled brush.
Lovely sink I sincerely hope you figure out how to restore it to your satisfaction.
Hi Pat. That looks like a very old soap stone sink. Use mineral oil to treat it.
Do you know what the sink is made from?
Sometimes, your soapstone sink will have stains that cannot be removed by scrubbing with soapy water. In such situations, you can remove the stains with chemical paint stripper. Apply a small amount with a towel, then wait a few minutes before wiping it away.
Is it mold? There are many mold removal solutions available.
Soapstone has a nice soft look even though it is non porus; a look very similar to "honed" granite.
I actually like it the way it is ... but where would you like to use it