Is your black granite bathroom or kitchen sink covered in a white, cloudy haze? Learn how to restore your black sink back to its original charm!

Whether your black granite sink is pure or composite, overtime it may develop scale buildup, which causes an undesirable cloudy appearance. Regardless of how many times you scrub it with your dish soap, that white scale will continue to reappear day after day; that is, until you find the actual solution. Continue reading to learn what you need to do in order to recover the beautiful luster your black granite sink promised the day you brought it home!

What You Will Need:

↣ Baking Soda
↣ White Distilled Vinegar
↣ Comet® Kitchen Sink Cleaner (or something similar)
↣ Heavy Duty Scrub Brush
↣ Vegetable Oil
↣ Water
↣ Plastic Bowl
↣ Rubber Gloves (optional)
↣ Paint Stirrer (optional)

You can find all of these materials at your local home improvement store, and possibly even at your neighborhood grocery store. If you do not want to buy a paint stirrer, you can just use a regular spoon or something else that will do the trick. In place of vegetable oil, you can use canola oil or coconut oil. It is recommended by some to use mineral oil, but it is not edible, so we do not recommend it.

Getting Started:

Start by wetting your sink with water. Be sure to cover all surface areas.

Then sprinkle a liberal amount of Comet® (or a similar kitchen cleaner of choice) all over the walls and basin of the sink.

Use your heavy-duty, thick bristled scrub brush to work the powdered cleaner into the sink’s surface. Use small circular motions, and don’t be afraid to use all the elbow grease you’ve got! The harder you scrub, the more thorough the clean.

After several minutes of scrubbing, rinse the sink clean with water.

Wait! You are only a ¼ of the way done!

In a large plastic bowl, combine 2 cups baking soda and 1 cup vinegar. Stir together until a thick paste is formed. You may need to add more baking soda to achieve a thick paste. You want the paste thick enough to stick to the sides of your sink. Work toward a glue-like viscosity.

Once you have your paste, don your rubber gloves and scoop a heap into your hands. Liberally smear the paste on all the surface areas of the sink. Smear it all over as if you are seasoning a turkey! Then allow the paste to sit for 10 minutes.

After the paste has sat for 10 minutes or so, rinse the sink clean with water and then dry it thoroughly with a clean rag or paper towel. Be sure it is completely dry before moving onto the next step.

Once your sink is completely dry, take a clean rag or paper towel and apply a generous amount of cooking oil to it. (Note: do not pour oil directly into sink!)

Begin to rub the cooking oil onto the surfaces of your sink. Use long, even strokes to ensure even coverage. You will see the sink begin to sparkle and shine! You will have to add more oil to your rag as you work.

When you are done, you are ready for the last step, which is to repeat this entire process again the very next day!

After 24 hours, you will need to repeat this entire process again. In many cases, homeowners have had even greater success repeating the process for a third time on the third day. If you do not repeat the process at least once, it is likely that the white stains will reappear just a little. A second and third coat will ensure the results last.

Call Weilhammer Plumbing Co. Inc. at 317-784-1870 when you need a licensed Indianapolis plumber you can trust. Owner and master plumber, Mark Weilhammer, has more than 60 years of experience in the plumbing industry. He can provide plumbing repair, replacements, diagnostics, installations, equipment sales, and much more. We also offer free estimates, free plumbing advice, and even free haul-away for old plumbing appliances like water heaters, water softeners, sump pumps, and more!