How to Seal Marble Floors

marble-floorsMarble is a beautiful stone that many people love to see in their homes. However, marble can be difficult to take care of and it’s not always easy to clean. Fortunately, there are ways to seal marble floors so that you can keep them looking nice for years without worrying about spills or dirt getting on the flooring. In this blog post, I will review different types of sealers and tell you how to apply them.

A little bit about marble floors

Marble floors are a good choice for many homeowners. Marble is a durable stone that resists scratches and staining, and it can be polished to a high shine. Marble also has a natural beauty that many homeowners appreciate.

However, marble floors are not the best choice for everyone. They are more expensive than most other flooring materials, and they require regular cleaning and polishing to maintain their shine.

Additionally, marble can be damaged by acidic foods or liquids, so it is not recommended for homes with young children or pets.

If you are considering installing marble floors in your home, be sure to weigh the pros and cons carefully before making a decision. Marble floors can be beautiful and durable, but they may not be the right choice for everyone.

Do marble floors need sealing?

Definitely. Marble is a porous stone that absorbs liquids and stains. Sealing keeps the absorption to a minimum by creating a protective layer over the surface of the stone. Without sealing, liquid such as water or wine spills will leave an indelible mark on your marble floor.

Over time this liquid will begin to break down the color pigments of your marble causing dulling and discoloration no matter how much you might scrub it with soap and water.

What does sealing do?

Sealing adds another barrier between liquid (including but not limited to; food grease, spilled drinks, etc.) and your stone floors protecting them from staining, etching & discoloration. It also makes cleaning easier – just sweep or mop your floor with a damp rag to remove most dirt, grime, and dust.

How often should you seal marble floors?

If you’re new to owning marble floors, I  recommend that you start by having them professionally sealed the first time. Depending on the color of your stone and traffic levels in your home it should be re-sealed every 1 – 3 years. How long each application lasts depends on foot traffic as well as any other factors such as spillage or staining. Note that if you live near the ocean you should only need to seal your floors once every 2 – 4 years.

Types of marble floor sealers:

  1. Water-based sealers for marble floors are available in both penetrating and topical sealers. Penetrating sealers are absorbed into the surface of the marble and offer protection against staining and etching. They also enhance the natural color of the marble. Topical sealers form a film on the surface of the marble that can be scratched or discolored over time.
  2. Oil-based sealers for marble floors are available as both penetrating and topical sealers. Penetrating oil-based sealers offer protection against staining, etching, and moisture damage while enhancing the natural color of the stone.
  3. Silicone-based penetrating sealers for marble floors protect against staining and etching while enhancing the natural color of the stone.
  4. Paste waxes for marble floors do not offer any real protection to the stone; instead, they act as cleaners that remove dirt and dust from the surface of the marble.

The best type of sealer for marble floors is a penetrating silicone-based sealer that will protect against staining, etching, and moisture damage while enhancing the natural color of the stone.

Sealing marble floors

  1. Clean the surface of the marble. This can be done by sweeping or vacuuming the floor, then using a mop and hot water to remove any dirt or debris. This is an important step to ensure a solid bond.
  2. Nail holes and cracks in the marble should be repaired after ensuring they are clean. They can be filled with an epoxy filler or grout. Tape off any areas of the floor that will not need to be sealed using painter/masking tape, leaving a 1/2-inch border on all sides of the floor.
  3. Determine which sealant to use. There are many different types of sealants available, so it is important to select the one that is best suited for the specific type of marble. Usually, a high-quality penetrating silicone-based sealer is best, but consult a professional if unsure.
  4. Pour the sealant onto the floor in a thin, even layer. Use a rubber squeegee or paintbrush to spread the sealant evenly across the surface of the marble. Be sure to avoid puddles and excess sealant. Also, be sure to follow the manufacturer’s instructions carefully. Some sealers may have different instructions.
  5. Allow the sealant to dry completely. This may take several hours or even a day or two, depending on the type of sealant used.
  6. Once the sealant has dried, test it by dropping some water onto the surface. If the water beads up and does not soak into the marble, then the sealant is working correctly.

If you have any questions about sealing your marble floor, be sure to consult a professional. They will be able to help you choose the best sealant for your specific floor and give you instructions on how to apply the product.


Marble floors need to be sealed in order to save their beauty. This article provided you with the exact steps to seal marble floors properly so now you are able to do that without problems.

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