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How to Clean Unsealed Concrete floors

Concrete floors are not new to the game anymore. They have been around for quite a long time, and as such, you cannot contest their popularity. It used to be a strict driveway and garage flooring, but it has soon transformed into flooring for homes. Now with many great designs and patterns, homeowners use them for floors indoors.

Concrete floors are naturally porous and require regular cleaning from time to time. It would help if you cleaned the floor from dust, grime, and other unwanted dirt. However, when using a sealed concrete floor, the cleaning process is more straightforward. An unsealed concrete floor requires more cleaning and techniques to ensure its durability.

If you are looking for an effective cleaning process for your unsealed concrete floor, then this post is for you. 

How to Clean Unsealed Concrete Floors

There are several different methods of cleaning your unsealed concrete floor. These methods are all dependent on the reason for cleaning. It is also dependent on the type of stain on your unsealed concrete. This helps you achieve the right proper results. We’ve outlined the process of cleaning a stained unsealed concrete floor here.

Step 1. Sprinkle Sawdust on the Floor.

You are to collect sawdust and sprinkle it over oil and grease stain spots on the concrete flooring for this cleaning method. After distributing the sawdust evenly, allow sawdust to sit for a complete 12 hours. It will enable it to suck/soak up the oil-based and grease stain thoroughly. 

You can use a timer for this. The use of sawdust is fantastic for stains that soaked into the floor of unsealed concrete. It is not only for grease and oil stains. So if you have a stain that seems to have affected your unsealed concrete’s coloring, this is an excellent method.

Step 2. Sweep the floor with a broom

A sturdy push broom is suitable for this cleaning. After the 12 hour wait for the soak up by the sawdust, you would need to sweep off the sawdust. It is to sweep off any debris to be left and prepare your floor for dust mopping or vacuuming. It would be best if you did the sweeping appropriately. Whether or not sawdust was used or ignored, you must do the sweeping. It makes the next step of cleaning easier for you. It also prepares your floor.

Step 3. Vacuum or dust mop the floor

Sometimes stain spots are still visible, and you cannot ignore the need for vacuuming or dust mopping. It is done to clean off any dirt or stains that might be leftover giving your floor a shiny clean look. When using a vacuum, using an attached fine brush would also do your floor some good. 

It is best to remember that dust mopping or vacuuming might not entirely clean off the stains and if this does happen, you would need to proceed to the next step to ensure it is gone completely.

Step 4. Clean Further With Detergent and Water

Some stains need to be moistened with water to ensure they are entirely gotten rid of and cleaned. Water should be poured directly into the stains and then detergent allowed to sit on them. It should be left for at least an hour. This time is to allow for proper penetration.

Detergents are powerful cleaning agents that contain properties that can break into stains. These properties make the stains easier to clean off.

Step 5. Scrub with a brush and boiled water

A scrubbing brush and boiled water should be used to work through detergent and completely removing any stains that might be left. Unsealed concrete floors are very porous, and using a scrubbing brush helps to reach into tiny openings to break down any stains. When using a brush, you shouldn’t do it too hard but thoroughly.

Step 6. Baking soda and mopping

You should pour baking soda into one gallon of hot water. The solution should be mixed appropriately and put into a clean, mopping bucket. You should then dip the mop into the bucket and dry appropriately before cleaning the floor. You should repeat this process till the entire floor has been covered and cleaned.

Step 7. Rinse and dry

The floor should be adequately cleaned and dried with a clean cloth or towel. Then it should be allowed to dry correctly.

Cleaning for Unsealed Outdoor Concrete Floors

The cleaning for unsealed outdoor flooring is almost the same as the indoor cleaning only with few differences.

  • Clean water should be sprayed using a water hose and brush used to scrub off stains. The pressure coming from the hose helps to soften colors and makes them easier to cleanout. You can also use Pressure pipes and brooms as an alternative method for removing the stains.
  • For difficult stains, the heavy commercial duty concrete floor cleaner and a mop are a great alternative. You are sure to get out tough stains from your floor.
  • Some spots pile up heavily, and a pressure cleaner is perfect for this type of dirt removal.

Can you Steam Mop an Unsealed Concrete Floor?

Yes, you can steam mop an unsealed concrete floor. However, there are precautions to be taken and followed dutifully to avoid damaging your floor. They are;

a. Attach the cloth to the mop foot before plugging it in. it is a safety measure. You should also avoid filling the mop’s water reservoir when the mop is still plugged into a socket. You should seriously take this instruction to prevent electrocution that might lead to death.

b. The steam mop’s reservoir is meant to contain water only. You shouldn’t use it for storing your heavy cleaning agents and chemicals. The steam mop is already solely made to clean and get rid of stains. No further cleaning agents are required in the use of this equipment.

c. Don’t use a steam mop on areas that are close to cold fixtures. That includes fixtures like the porcelain sink. The hot steam, when sprayed on it, may crack them, leading to damages.

d. Steam floors are very vulnerable to dirt and should not be left unattended. You are to clean regularly to maintain a clean and shiny look. 

The Best Concrete Cleaners 2020

ProductWhere to Buy
RMR-86 instant Mold and Mildew Stain Remover Spray  Click to Check on Amazon
Simple Green Oxy Solve Total Pressure Washer CleanerClick to Check on Amazon
CAF Outdoor Cleaning EXIMO Waterless Concrete Cleaner.Click to Check on Amazon
Oil Eater Cleaner Degreaser.Click to Check on Amazon
ACT Concrete Cleaner.Click to Check on Amazon
Zep Neutral pH Floor Cleaner Concrete ZUNEUTI28.Click to Check on Amazon
Sunnyside 64216 TSP All-Purpose Cleaner.  Click to Check on Amazon

Can you Use Vinegar to Clean Unsealed Concrete Floors?

The answer to that is yes. You can use vinegar to clean unsealed concrete floors. However, full-strength vinegar should not be used on unsealed concrete. This is because of staining problems that may occur after use. Always dilute the vinegar with water and the solution properly mixed. Water and vinegar should be of equal parts. 

After the solution has been made, apply with a scrubbing brush then leave it to sit. After sitting, it should be cleaned out with warm water and a clean cloth.

You can also mix baking powder and vinegar to form a cleaning solution. It helps to whiten your floor. The baking soda in the vinegar helps to neutralize the chemical. Vinegar is a great cleaning agent.

Vinegar is more remarkable than other products because of its lack of toxic fume emission.

Sealing the Concrete Floor.

You might decide to change your mind in the long run and want to seal your concrete floor. Sealers add extra protection to your floor and would make it less porous and more durable. In case you are thinking of making this choice, these are the best sealers to purchase.

  • Masonry Defender Water-Based Penetrating Concrete Sealer
  • DryWay Water-Repellent Concrete Sealer
  • Armor AR350 Solvent-Based Acrylic Concrete and Paver Sealer
  • EnduraSeal Acrylic Solvent Base Semi-Glass Concrete Sealer
  • Siloxa-Tek 8500 penetrating Concrete Sealer
  • Toughcrete Concrete Sealer


Dealing with concrete floors requires much expertise. You should be able to differentiate an unsealed concrete floor from a sealed concrete floor. It helps you to be able to determine what cleaning process or technique best suits the floor type.

You should also be able to tell the difference between a stained floor and an unstained one. Maintenance is vital to ensure the durability of your unsealed concrete floor. Do well to follow the right steps.