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How to repair porcelain/cast iron sink scratches

This is an under the counter sink installation and I do not want to remove the granite counter top to remove and repair the sink. Please advise best process to eliminate srcatches, dull spots. Most repair services in my area advertise a polymer spray-on process? Is there anything better?

If this does not work, is it possible to cut out the cast iron sink and replace with a new surface mount sink. If so how do I cut out the sink??

Look forward to your reply.


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You can repair the sink with an epoxy based porcelin kit

Epoxy will not show brush streaks it will levelitself out do not get any kits from HD or Lowes they do not harden

Go to Sherwin Williams and ask for an epoxy paint for porcelin

As for removing the under counter sink
I would try cutting through the caulk adhesive
between the bottom of the granite and cast iron
sink with a hack saw blade
I have used a diamond blade on a grinder and
cut through but it was not a granite counter top
Be extremely areful to suport the underside of the sink with 2x4 blocks to prevent stressing the granite as you cut through
Good luck

Posted on Dec 31, 2008

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Use comet cleanser to remove pot and pan marks. Unless they are deep scratches or gouging.

Posted on Jul 12, 2009

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I would call your local Kott Koating dealer and have them re-glaze the sink with their Porcelain based K-40 glaze. It was specifically developed for this application and will make it look like a new sink. Plus, its not paint (epoxy or urethane) so it will last way way longer and be much more durable.

Posted on Nov 25, 2009

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