White Haze On Granite Composite Sinks

White Haze On Granite Composite Sinks

White Haze on Granite Composite Sinks 

When a composite granite sink is new, the colors are vibrant and the surface is easy to clean. With proper care and some "do's and don'ts," granite sinks are simple to keep looking like new. Even with the darker colors, such as brown and black.  

What Causes White Haze on Composite Sinks

Two common issues resemble a white or chalky haze on black granite composite sinks. One is caused by mineral deposits (calcium and lime), and the other is surface damage. Damaged surfaces are particularly noticeable on dark colored sinks, and are likely caused by an abrasive pad or some type of non-scratch textured pad. Various types of cleaning solutions / chemicals also contribute.

Although removing mineral deposits is easy, we recommend you learn a couple simple steps to avoid advancing to a bigger issues: surface wear, damage or etching. 

First identify which issue exists, and start with a thorough cleaning. You'll need to remove all soap scum, grease, oil, and mineral deposits (calcium, lime and rust). We embedded a 2:00 minute video located below to help you deep clean a composite granite sink.

Mineral Deposit Buildup: Calcium & Limescale Causing the White Haze

Many homes have hard water, and this is typically where the issue starts; even if you have a water softener connected. Unless you wipe your sink out after every use, water will evaporate leaving behind minerals. These minerals (calcium and lime) bond to the surface. Early on they can be seen as water spots located in the corners, and they progressively build up and transition into a white or chalky haze. Although it is highly recommended to use preventative care and maintenance, it is even more important to know how to safely remove calcium and lime without causing surface wear, damage or etching. 

Etching: Harsh Cleaners

Before attempting to remove mineral deposits, it is important to know that nearly every chemical solution formulated to remove calcium, lime and rust is too harsh or abrasive for granite sinks. They can leave behind a surface blemish that is still visible when wet. Sometimes this issue occurs when various types of cleaning solutions and chemicals are used. These blemishes can sometimes be improved, but not repaired. This is why it is important to practice preventative care and maintenance. Thankfully, certain specialty products and techniques can avoid an expensive replacement or the inconvenience or restoring the surface of a composite granite sink.

Abrasive and Non-scratch Pads

It’s common to experience light surface wear or damage from a textured or abrasive pad. In certain circumstances, non-abrasive pads can even cause this sort of damage.  This can occur over a long period of time, and is especially common when individuals try to “scrub” water spots or remove the white haze with the textured side of a sponge or abrasive pad. This isn’t unusual and is typically easy to repair.

pH-Neutral Cleaners Don't Clean Mineral Deposits

Many popular brands of dish soap (and all brands of natural stone and granite cleaners) are pH neutral. pH-neutral cleaning products are safe for natural stone, but are not capable of removing mineral deposits such as calcium and lime.  This can make such issues confusing to remove. This is why using more abrasive pads or non-scratch pads can progressively contribute to premature surface wear or a damaged surface.

How to Safely Remove Calcium and Lime From Granite and Prevent Future Issues

With just a few simple steps you can improve the look and performance of your sink. Consider practicing a little prevention by using cleaning solutions formulated with  ioSeal protectants. The following video demonstrates how to safely remove calcium and lime from granite.

ove the look and performance of your sink. Consider practicing a little prevention by using cleaning solutions formulated with  ioSeal protectants. The following video demonstrates how to safely remove calcium and lime from granite.

If Your Sink has Been Damaged

If your sink has been already been damaged by abrasive pads, non-scratch pads or harsh chemicals, don't worry about a thing. Our stone care pro will gladly assist with the additional steps to restore the look of your sink. Simply call for your free consultation at 317-865-0000. 

Helpful Links:

Prevent the Haze and Maintain the Look

As already mentioned, try to wipe the water out of the sink after every use. This will reduce exposure to mineral deposit and soap scum buildup.

Treatments or cleaning solutions that contain ioSeal™ bond a protective barrier to the surface. This barrier helps prevent mineral deposit buildup, while improving ease of cleaning and making colors more vibrant. An additional level of protection every time you clean!

Granite Composite Sink Care and Maintenance Kit by Supreme Surface®

Clean, shine and protect the look of composite granite sinks with Supreme Surface®.

Supreme Surface® Scum & Mineral Deposit Remover is powerful enough to remove calcium, lime and rust, but gentle enough to not cause etching / damage to your sink.

Once these mineral deposits are safely removed, use the Supreme Surface® Granite, Quartz & Marble Treatment with ioSeal to clean shine and protect, all in one bottle.

    Looking for personalized assistance to help restore the look of your composite granite sink? Feel free to contact us with questions 317-865-0000.

    Editor’s Note: This post was originally published in August 30 of 2020 and has been updated for accuracy and comprehensiveness.

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    • Tom Munro
    Comments 6
    • Samuel Munro
      Samuel Munro

      Information/assistance about the composite granite sink restorations that Shannon, D A Mullen, and Wendy mentioned can be figured out through the phone line this blog gives. The customer service has been very helpful and informative; damage on granite sinks appears to be very common.

    • Wendy

      Our sink has been damaged. What are my options? A couple posts mentioned a restoration kit. More info on that would be great.

    • D A Mullen
      D A Mullen

      I’m interested in the composite granite sink restoration kit Shannon Wastling mentioned. The same thing happened with my Blanco Silgranit sink (vinegar and baking soda mixture). Thanks.

    • Cynthia McConkey
      Cynthia McConkey

      Sorry can’t send pictures, but white dots on granite in front of sink .

    • Cynthia McConkey
      Cynthia McConkey

      Is this a build up of something? We rent out our condo and I am sure it wasn’t there before.. will send pictures to your email.

    • Shannon Wastling
      Shannon Wastling

      I called Tom about the damage I had done to my sink by using a vinegar and baking soda solution while soaking some greasy filters. I thought the damage may have been irreversible, but Tom and courage me to try the composite granite sink restoration kit. I got it within 2 days and tried it right away following all his instructions and my sink is like new. I can’t believe how well it worked and I’m so thankful!

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