Gray Marks on a Porcelain Sink

Use some smooth cook top cleaner on a paper towel, rub & within seconds, the scratches will disappear, guaranteed! This also works great on bath/jetted tubs also.

Toothpaste! OMG it worked great and my new-ish sink is new again. Try it.

I'm going to try some of the other users' suggestions. I've used Restore-4 for porcelain, and it works well. Just a note though - it stinks! Open your windows. Make sure sink is completely dry before spraying it on with a spray bottle. Let soak for 15 minutes, then scrub with a scrub brush. It's a pain, but it works.

Toothpaste with good amount of elbow grease worked perfect for me. Also took off rust stains.

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I used "Cerama-Brite" and it worked like a charm.

I read on a post recently to use regular tooth paste (not the gel type). I tried it this weekend and it worked!!!

Please dont use cleanser on your new sink. I did that when mine was new 30 some years ago and have since learned it takes the finish off the sink. I use Tilex for stubborn stains in the sink. Just spray the sink, let set for about 20 seconds and rinse.

Also, a friend of mine suggested I try baking soda to clean my stained bathtub. I didnt think it would work as I'd scrubbed and scrubbed with Comet. I tried it and she was right. Sometimes baking soda can clean better than cleanser!!

Once you get your sink clean you may want to consider putting paste wax on it to keep it that way. Water beads up and it shines. The wax also protects the sink. I'm wondering how Rainex that is used for car windshields would work... hmmmm

Best of luck,

I use either Bon Ami or Bar Keepers Friend. You can purchase both by the Ajax and Comet cleansers in your grocery store cleaning products aisle.

I use Electrosol liquid dishwasher detergent. It completely removes all stains and deodorizes the sink. My sink is white composite material, and comes up like new every time.

I use Bar Keeper's Friend to clean the gray marks on my sink. I think they come from putting my pots & pans in the sink. Hope this helps.

A sticker on my new sink said, only use Barkeepers Friend and that's what I do. Works perfect for those gray pan marks.

My manufacturer recommended using Barkeepers Friend on my porcelein sink. Works great.