Cleaning a black composite Silgranit sink can seem daunting, but with the right steps and materials, you can make it shine like new. In this blog post, we’ll cover the best methods to clean and maintain your black composite sink, ensuring it stays in top condition for years to come.

Initial Cleaning with DIY Vinegar Mix

Start by spraying your sink with a homemade vinegar mix. Combine 1 cup of white vinegar, 1 cup of water, and a teaspoon of Dawn dish soap in a spray bottle. Spray the entire sink surface and scrub thoroughly with a Scrub Daddy sponge. This mixture effectively cuts through grime, making it ideal for everyday cleaning.

Tackling Hard Water Buildup

For more stubborn hard water buildup and haziness, use Bar Keeper’s Friend Soft Cleanser. Apply the cleanser across the sink and scrub with a non-scratch sponge. The Scrub Daddy sponge is perfect for this task as it is tough on stains but gentle on the sink’s surface.

Cleaning the Drain and Garbage Disposal

Pay special attention to the drain and garbage disposal area. Use a toothbrush to scrub away any grease, grime, or food buildup. Bar Keeper’s Friend works well here, too, helping to shine up the metal and keep it looking great. Remember not to let the cleanser sit on the sink surface for too long—scrub for about five minutes and rinse thoroughly to avoid haziness.

If your sink has a garbage disposal, it’s important to keep it clean and odor-free. Use CLR tablets to clean the disposal. Add a bit of water, drop in the tablet, and run the disposal. This not only cleans but also freshens up the disposal, preventing any unpleasant odors from spreading throughout your kitchen.

Cleaning the Faucet Head

The faucet head can accumulate a lot of hard water deposits. Soak it in vinegar or CLR to remove these deposits. If you have a retractable faucet head, secure it in a dish of vinegar with a chip clip to ensure it soaks properly. Scrub with a toothbrush and rinse well to restore its shine.

Oiling the Sink for Protection and Shine

Final Rinse and Dry

Before oiling, give the sink one final rinse with a damp microfiber towel. Follow up with a dry microfiber towel to ensure the surface is completely dry. Let the sink sit for about five minutes to ensure all moisture has evaporated.

Applying Mineral Oil

Use food-grade mineral oil to oil the sink. Apply a small amount to a paper towel and evenly coat the entire sink surface. This not only enhances the sink’s shine but also creates a protective layer that helps prevent hard water and mineral deposits from accumulating. Allow the sink to dry completely for about an hour before using it again.


By following these steps, you can maintain the beauty and functionality of your black composite Silgranit sink. Regular cleaning and proper maintenance will keep it looking like new and extend its lifespan. Happy cleaning!

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