How to Fix Scratched Porcelain Sink: A Step-by-Step Guide

Identifying the extent of the scratch

Identifying the extent of the scratch

Porcelain sinks are popular for their durability, but they are not completely immune to scratches. In fact, even with proper care and maintenance, over time they can develop scratches from daily wear and tear. These scratches can be unsightly and can make your sink look worn out and old.

Identifying the extent of the scratch is the first step to fixing it. It is important to determine the depth of the scratch before attempting to repair it. In general, there are three levels of scratch depth: surface scratches, deep scratches, and cracks.

Surface scratches are superficial scratches on the top layer of the porcelain. They are not very deep and can be easily repaired with a little bit of effort. These scratches are usually caused by everyday use such as scrubbing the sink with abrasive cleaners or using harsh metal scrubbers. They can also be caused by dropping hard objects in the sink or from contact with sharp utensils.

Deep scratches, on the other hand, are scratches that are more significant and have penetrated the surface of the porcelain. These scratches can be more troublesome and are more difficult to repair than surface scratches. They can be caused by heavy use, dropped objects, or even accidents with metal objects.

Cracks are the most severe type of damage that a porcelain sink can suffer from. They are much more complicated to fix and may require professional help. Cracks are usually caused by heavy impact or temperature changes that cause the porcelain to expand and contract.

It is essential to identify the extent of the scratch before attempting to fix it. This will give you an idea of what you need to do and what materials you will need to repair the damage. In some cases, it may be necessary to call in a professional for help if the damage is too severe.

Once you have identified the type and depth of the scratch, you can move on to the next step of the process: finding the right repair solution.

Gather necessary materials and tools

porcelain sink materials and tools

If you want to fix a scratched porcelain sink effortlessly, you need to ensure that you have all the necessary materials before you get started. Here are some of the materials that you need:

  • Porcelain sink repair kit: This is the most crucial thing that you need to fix small scratches on your porcelain sink. They usually come with a filler, hardener, and color-matching paint. The repair kit is readily available at any hardware store, home improvement store or online retailer.
  • Soft-bristled brush: You need to have a soft brush to clean the surface of the sink before you start the repair process. The brush should be gentle enough not to create more scratches.
  • Microfiber cloth: A microfiber cloth is essential to wipe off the sink after applying the filler. A microfiber cloth is gentle enough not to scratch the surface again, and it’s more efficient at wiping off debris than other types of cloth.
  • Rubbing alcohol: You need rubbing alcohol to clean the surface of the sink before applying the filler. Rubbing alcohol removes any oils, dirt or debris that could interfere with the repair process.
  • Sandpaper: Sandpaper is helpful when repairing deep and stubborn scratches on the sink. You need sandpaper with grit ranging from 400 to 2000 depending on the depth of the scratch.
  • Masking tape: Masking tape is useful in covering the areas that are not damaged, ensuring that they are not affected during the repair process. If you tape around the damaged area, you can easily apply the filler and paint without worrying about ruining other parts of the sink.

Now that you have all the necessary materials, ensure that you have the following tools:

  • Razor blade: You need a razor blade to remove excess filler after applying it on the surface of the sink. A razor blade is the best tool to use since it does not scratch the surface of the sink.
  • Gloves: Gloves are essential when working with the filler since it’s a chemical compound that may irritate your skin. Ensure that you wear gloves that fit correctly and have no holes to protect your hands from the chemicals.
  • Mask: The porcelain sink repair kit may contain harmful fumes that you shouldn’t inhale. Ensure that you wear a mask when using the filler.
  • Measuring tools: Most porcelain sink repair kits require a specific ratio of filler and hardener. Ensure that you have measuring tools, for instance, small spoons or cups, to get the right ratio.

Having all the necessary materials and tools is essential to fix a scratched porcelain sink successfully. Ensure that you follow the instructions provided in the porcelain sink repair kit to get the best results.

Sanding and Filling the Scratch

Sanding and Filling a Porcelain Sink

Porcelain sinks are a great addition to any bathroom or kitchen. They not only add beauty but also functionality. However, with daily use, they can become scratched and stained. The good news is that scratches can be easily fixed without having to replace the entire sink. In this article, we will be discussing two of the most effective methods for removing scratches from a porcelain sink – sanding and filling the scratch.

Sanding the Scratch:

The process of sanding involves gently grinding the surface of the sink to remove the scratch completely. This method is effective if the scratch is not deep. Here are the steps to follow when sanding the scratch:

Step 1: Clean the sink thoroughly

Before you begin the sanding process, it’s essential to clean the sink. Use mild soap and warm water to clean the sink. Rinse the sink thoroughly and let it dry.

Step 2: Apply a grinding compound

You can buy the grinding compound from any hardware store. Apply a small amount of it to the scratched area and work it into the surface of the porcelain sink using a soft cloth. Be gentle, and do not apply too much pressure.

Step 3: Sand the scratch gently

After applying the grinding compound, you will need to use sandpaper to sand the scratch gently. If the scratch is shallow, start with a 600 grit sandpaper and work your way up to 1200 grit. Use a circular motion and be gentle as you sand the area. Rinse the sink and check if the scratch is removed. If the scratch is still visible, repeat the process.

Filling the Scratch:

The process of filling involves filling the scratched area with a porcelain repair kit. This method is effective for deep scratches that cannot be removed through sanding. Here are the steps to follow:

Step 1: Clean the sink thoroughly

Clean the sink using warm water and mild soap, then let it dry.

Step 2: Apply a porcelain repair kit

You can buy a porcelain repair kit from a hardware store. Mix the two-part epoxy to create the compound. Apply it to the scratched area using a small brush or applicator provided with the kit. Be sure to apply the compound generously to cover the entire scratch.

Step 3: Let the compound dry

Let the porcelain repair kit dry completely. This can take between 24 and 48 hours. Avoid using the sink during the drying period.

Step 4:Sand the patch

After the compound has dried, take sandpaper and gently sand the patch. Use a circular motion and be gentle. Rinse the sink and check if the scratch has disappeared. If it is still visible, repeat the process.


Fixing a scratch on a porcelain sink is not as complicated as it may seem. With the right tools and techniques, you can remove scratches effectively. Sanding and filling are two of the most effective methods for removing scratches from a porcelain sink. However, if the scratch is too deep or the sink is chipped, it may be time to replace it.

Buffing and polishing the damaged area

Buffing and polishing the damaged area

If your porcelain sink is scratched, it is possible to minimize the damage by buffing and polishing the affected area. This method can remove minor scratches and improve the overall appearance of the sink. Here’s how you can buff and polish your porcelain sink:

1. Gather the necessary materials

You will need a mild abrasive, such as baking soda or toothpaste, a soft cloth or sponge, and some water. You may also need a porcelain repair kit, which usually comes with a filler compound and a finishing glaze. If the scratches are deep, it may be best to use a repair kit to completely fill and smooth out the scratches before buffing and polishing.

2. Clean the sink

Before starting any repairs, thoroughly clean the sink to remove any dirt, grime, or soap scum. This will prevent any debris from getting trapped in the polishing compound and damaging the sink further. Use warm water and a mild detergent, and rinse thoroughly.

3. Apply the abrasive

Mix some baking soda or toothpaste with a few drops of water to make a paste. Apply the paste to the scratched area, and rub gently with a soft cloth or sponge. Use circular motions and apply moderate pressure. Keep adding the paste and water as needed, and keep buffing until you see the scratches start to fade.

4. Polish the sink

Once the scratches have been buffed out, you can proceed to polish the sink. You can use a porcelain repair kit to do this, or you can make your own polishing compound using a mixture of baking soda and water. Apply the compound to the entire sink, not just the scratched area, using circular motions and gentle pressure. Keep rubbing until the sink is smooth and shiny, and then rinse thoroughly with warm water.

If you’re using a porcelain repair kit, be sure to follow the instructions carefully and use the filler compound to fill in any remaining scratches or chips. Apply the finishing glaze according to the kit’s directions, and then polish as described above.

5. Maintain the sink

After buffing and polishing, it’s important to maintain the sink properly to prevent future damage. Avoid using abrasive cleaners, harsh chemicals, or steel wool on the sink, as this can scratch the surface. Instead, use a mild detergent and a soft cloth or sponge to clean the sink regularly, and take care not to drop heavy or sharp objects on the surface.

If your porcelain sink is severely scratched or chipped, or if the damage is in a visible location, you may want to consider hiring a professional to refinish or replace the sink. However, for minor scratches and damage, buffing and polishing can be an effective and affordable DIY solution.

Preventing future scratches and maintaining the sink’s condition

porcelain sink care

Now that you have restored your porcelain sink to its former glory, it is essential to take preventative measures to ensure it doesn’t get scratched again. Here are some tips on how to prevent future scratches and maintain your sink’s condition:

Use a Sink Mat

sink mat for on porcelain sink

One of the easiest ways to prevent scratches on your sink is by using a sink mat. This mat sits at the bottom of the sink and protects it from damage caused by pots, pans, and other utensils. Not only does it prevent scratches, but it also acts as a cushion to reduce the impact of heavy objects on the sink. You can find sink mats in different shapes, sizes, and materials to fit your sink’s design and your personal preferences.

Avoid Dropping Heavy Items

don't drop things in porcelain sink

This may seem like common sense, but it is easier said than done. Dropping heavy items in the sink can cause chips, scratches, and even cracks. Avoid dropping anything heavy in the sink, and always handle items with care. If you have a garbage disposal, consider cutting large food items into smaller pieces before putting them in the drain to prevent clogging and damage to the disposal blades. Also, be careful when placing sharp knives or scissors in the sink, as they can easily scratch the porcelain surface.

Do Not Use Abrasive Cleaners

abrasive cleaners danger to porcelain sink

Avoid using abrasive cleaners on your porcelain sink, as they can cause scratches and dull the surface shine. Instead, use gentle solutions such as dish soap, baking soda, or white vinegar to clean your sink. You can also use specialty porcelain sink cleaners that are specifically designed to remove stains and buildup without damaging the surface. Make sure to follow the manufacturer’s instructions when using these cleaners to avoid any adverse effects on the sink.

Regular Maintenance

maintenance for porcelain sink

Performing regular maintenance on your porcelain sink can help keep it in top condition and prevent future damage. This includes wiping the sink clean after each use to prevent buildup of food particles, soap scum, and water spots. Use a soft cloth or sponge to avoid scratching the surface. Also, inspect the sink periodically for signs of damage or wear and address any issues promptly to prevent them from getting worse. Applying a coat of porcelain wax or sealant every six months can also help protect the sink from scratches and maintain its shine.

Be Gentle with the Sink

porcelain sink handle with care

Lastly, be gentle with your porcelain sink. Avoid leaning or sitting on it, placing heavy or sharp objects on it, or using it as a cutting board. These actions can cause significant damage to the sink, and repairs can be costly. Treat your sink with care, and it will reward you with longevity and lasting beauty.

By following these tips, you can prevent future scratches on your porcelain sink and maintain its condition for years to come. Remember that prevention is always better than cure, and taking care of your sink is an investment that pays off in the long run.

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