Having a porcelain sink is the ultimate in kitchen technology as far as I am concerned for the sophisticated look, However buyer be warned that every precaution must be taken not to dent or chip otherwise it will never look the same once you start trying to repair it.

No, I don't think so, replace it. I know expensive but in a busy kitchen I have found that stainless steel is the best.

Tick

Do you mean enamel over cast iron?
I know of no paint or filler than works, even on small spots. They discolor and crack, if you can get them to hold anyway.

Thank you,
It is the bathroom sink--two of them in one cabinet, and it is over metal--but I can't tell if it is enamel or porcelin, don't know the difference in how they feel.
Moved into new place and the bathroom sinks all have big chips that are down to metal and rusty. Can't really afford to replace the sinks now.
So, understanding that there isn't a long-lasting solution, is there anything that I could just do for when clients come over -- even if it only lasts a day or two, and then be able to repeat it, until I can afford new sinks? I would like to replace the cabinets they are in as well, so hate to have to buy sinks to fit current cabinet and then be restricted on what I choose for the cabinet later.

Is that damaged sink Self-Rimming or Under-Mount ?

Those are enamel on steel and tend to chip more than cast iron.
You can buy the paint but without taking off every speck of rust, it's hopeless, and it's difficult to get off all the rust without a grinder, and none of this is worth it.
But if clients are going to be using them, I suppose you could just give it a shot and just use a wire brush and sandpaper and steel wool on the rust.

Hi Bt...

Look to find some SOIL SEAL (home depot or local plumbing supply store)... actually made to replace liquid lead in old cast iron caulked drains, but also made as a tub crack filler... see image below (read can). Sand the spots as best you can and then use a putty knife to spread this stuff to fill the spots. When dry, sand the edges smooth and then you can use a little porc-a-fix to give a finished look.

Otherwise, for your short-term purposes, the porc-a-filler/porc-a-fix should work fine for you... ;)

Mark

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Thank You! I am off to the store for Soil Seal.

I'll try the wire brush. Otherwise somebody gave me one of those weird little rotary things that look like a miniature drill--except instead of drill bits like I have for my drill, there are all kinds of odd looking little things. Is it likley one of those might work as a grinding surface?

Self-rimming