"dadiOH" wrote in message
...
Percival P. Cassidy wrote:
Our porcelain-enamel kitchen sink has developed stains, especially
where the plastic "feet" of a "sink protector" have rested. I think
that stuff that has been dropped into the sink and not rinsed away
immediately has caught on those "feet" and remained there long enough
to stain the surface. I have cleaned the sink from time to time with
Soft-Scrub,

I think Percival has discovered not the Holy Grail but the same thing I
have: that Soft-Scrub isn't as soft as claimed. (-:

If it is rough because you used something too abrasive to clean it and
scratched it in the process but did not cut through it, you could
alleviate
it via finer & finer silicon carbide paper. When you get as fine as you
can
go with that, you can use the very fine aluminum oxide stuff that is used
to
polish plastic. Comes (usually) in a liguid medium, found at auto parts
stores. There are other polishing materials too; you need something
harder
than glass (moh's 7) and finer than the finest wet or dry paper which is
usually availble up to 2000 or 2500. The finer the grit the shinier the
surface.

While I think that DadiOH's approach to restoring the surface is the best,
my experience tells me once the original high-temp glaze is gone, it's not
coming back - at least not the way it was when it was new. Material has
been lost from the surface that's gone forever. Time for a new stainless
steel sink - they're usually much more resistant to the kind of damage that
the sink strainer's rubber feet apparently set in motion. Been there, done
that. )-:

--
Bobby G.