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Concrete cleaner. How to properly clean a concrete garage floor?

Which concrete cleaner to choose? Conlix or Conlix-Bio?

Concrete is the most widely used building material in the world. The word concrete comes from the words: solid, immobile. The phrase“concrete jungle” you should be interested in this, as it will help you answer the question of how to clean concrete?

For example, muriatic acid is sometimes used to clean concrete and masonry. But the binder in concrete, Portland cement, is dissolved  in the acid. Dissolving the glue that holds all the sand and aggregate together is not a good idea. Most cheap concrete removal fluids contain hydrochloric, muriatic, phosphoric and other dangerous acids. Only Conlix series fluids contain specially modified substances that are stronger than hydrochloric acid, and at the same time safer.

 Another example of the challenges faced by people who want to clean a concrete surface is efflorescence when the concrete hydrates and produces calcium hydroxide as a by-product (concrete is an alkaline material). Calcium hydroxide further reacts with carbon dioxide in the atmosphere to form calcium carbonate, which is a white, dusty material that is often found on the surface of concrete (called “efflorescence”). The sediment may become so heavy that it needs to be removed. Then the Conlix or Conlix-Bio liquid will help. Occasionally, calcium carbonate will deposit on cars  which are parked near the construction site. Then the desperate owners of cars stained with cement try to clean their cars at all costs. In this case, the use of fluids that contain acids is very dangerous as the car may begin to rust. The only liquid that is safe for car paint and will remove dried lime layers from the car is Conlix-Bio.

While some may think of cured concrete as a hard, dense rock, it is not. A mixture of cement, sand and aggregate is porous when mixed with water . This allows stains such as rust and oil to penetrate into the concrete. To remove dirt, you need something that can also penetrate the concrete and draw the dirt to the surface.

(The porosity of concrete causes freezing and thawing which lead  the surface to “peel off”. Never use de-icing salts on concrete. Because it gets into the top concrete layer and increases the process of freezing and thawing).

Concrete is a unique material that requires knowledge and care to be properly cleaned  and to remove stains from it without causing further damage.

Let’s move on to the concrete cleaning tips!

Concrete cleaner. How to manually clean a concrete garage floor?

General routine cleaning is a good idea to start with. The concrete floor collects dirt and residue. Items such as leaves, grass clippings, dead worms, blooms, etc. can accumulate on it. Concrete floors should be sweept regularly to keep them clean.

If greasy stains appear on concrete, they can retain water on it. This trapped moisture will absorb stains from organic materials and the above-mentioned white dusty bloom will appear.

So one of the simplest strategies to keep your concrete floor in good shape is to sweep it regularly. It sounds easy, and it is (especially if you’re using a high-quality wide broom, which you’ll get at the construction hardware store).

At some point, greasy stains and heavy soiling of concrete floors may appear. Then you will have to do more than just sweeping.

To clean your floor you will need to use a cleaner called Conlix or its plant-based Conlix-Bio.

Concrete cleaning process with Conlix:

  • Choose from among concrete cleaning fluids Conlix or Conlix-Bio
  • If necessary, mix the cleaning agent with water
  • Apply the product to the floor
  • Scrub
  • Wait from 1 to 3 minutes
  • Scrub again (sometimes not necessary)
  • Rinse thoroughly with water

Concrete cleaning agents such as Conlix-Bio and Conlix solvents can be bought on our website Conlix.pl

Mix the Conlix cleaner (some stains require the use of the concentrate product directly on the floor). For a less dirty floor, a household cleaning agent such as Conlix can be mixed in a ratio of cup of the product with a  litre of water. You can vary the mix and its proportions depending on the required cleaning power and concrete quality. For more dirty floors, you will probably need to increase the amount of the product.

ATTENTION!!! Before cleaning concrete over a large area, test the product on a small area.

After choosing and mixing the concrete cleaner, apply it to the floor. The floor should always be wet. If it dries, the stain will be difficult to remove and the agent may leave residual traces. Once you finish using Conlix, wash off the dirt and fluid with plenty of water, preferably under pressure.

After applying the solvent, scrub the surface and then let it dry for five to fifteen minutes. If you use a household cleaner, wait ten minutes. Follow the manufacturer’s instructions if you use commercial cleaner like Conlix.

Cleaning a concrete floor in a garage or driveway is a simple process, but some details are important. So remember the following rules!

Never let Conlix Liquid dry out with the stain. The stain will become difficult to remove if you let the stain dry with the fluid. Always rinse the stain and liquid with water.

Divide the floor into sections. As mentioned, the cleaner must not dry out and the contact time of the cleaner with the floor must be minimal for the safety of the surface. So clean the surface gradually, in sections. Do not clean the entire surface at once, do it in stages.

Use plenty of water to secure your surroundings, otherwise everything in the area will saturated with water. Protect walls, garden furniture, and other items from water and liquids that may get mixed together at some point.

Select the appropriate scrubber tool for the treated surface. There are special scrub brushes for this task. Using the correct brush will result in a clean, pleasant floor.

Concrete cleaner. Be careful with concrete cleaners that contain acids and trisodium phosphate!

One of the general cleaners we need to mention is trisodium phosphate (“TSP”). This chemical was a proven and good choice for concrete and masonry cleaning . Some people still use it because it’s cheap and cleans well. In addition, it is alkaline, so it does not harm the concrete like an acid-based cleaner.

However, this measure can harm you!

Trisodium Phosphate is alkaline enough to cause skin irritation and even burns, or acute breathlessness, phosphate itself is not considered ecological. For these reasons, it is no longer considered the first choice for routine cleaning.

concrete cleaner conlix bio

Concrete cleaner. Cleaning a concrete garage floor with a floor buffer?

To clean the garage floor, you can use a floor buffer equipped with a special scrubbing pad intended just for cleaning concrete. These electrically powered buffers will scrub the floor, replacing manual scrubbing with a brush. Buffers can be rented and the companies that deal with them often sell scrub pads as well.

Remember to clean the floor piece by piece. You still need to prevent the product from drying out.

Concrete cleaner. How to clean a concrete garage floor with a pressure washer?

One thing you can do to speed up the concrete cleaning process and increase the cleaning power is to use a pressure washer (not to be confused with an electric washer which uses hot water).

For concrete floor cleaning, the equipment used should have a minimum nominal pressure of 3000 psi and a flow rate of at least 12 liters per minute (both pressure and flow rate are needed to clean the concrete floor at an acceptable rate


Stains such as oil and rust may not be a problem depending on how the floor is used. If there is an interlocking rubber plate on it, you can ignore the stains. However, if you plan to use a bare concrete slab, the stains may stand out and then need to be removed to make the floor look pleasing.

Concrete cleaner. How to remove oil and grease stains from a concrete garage floor?

There are many options for removing oil and grease from concrete, including:

  • Wraps
  • Degreasing / cleaning agents
  • Microorganisms

Concrete cleaner. Wraps

Wraps are pastes applied to concrete to allow the stain to dry. They contain little or no liquid, so there is no chance of the stain to spread. In addition, the wrap is easy to use. You can buy a ready-to-use wrap on the website thinkecothinkbio.pl.

Most of the wraps available on the market are easy to use. Apply to the stain, let the compress dry, and then wipe any remaining stain along with the compress. And the task is finished!

There are several home recipes available on the internet, but these compresses require a lot of fluid (which can spread the stain) and then the small problem can become much bigger. So there is a risk that a wrap that is made by yourself will make it more difficult than easy to remove the stain from the concrete. Spend some coins and buy a wrap that will remove oil and grease from the concrete without problems.

Concrete cleaner. Degreasers

Another option is to use  products such as Conlix and Conlix-Bio

This type of stain remover is very effective and quick to use. Mix Conlix with water (if necessary) so that it acts with the right amount of force. Apply it to the stain, scrub the stained area, let the agent soak in the surface, scrub the surface again and then rinse it with water. Some users like to use a high pressure washer for rinsing. It then provides a little extra force in the cleaning process. One advantage that Conlix product has is that you can also use it for other purposes in your home or workshop.

Concrete cleaner. Microorganisms

A less common method is to use microorganisms to break up the stain. Such products are commercially available and some say they work quite well. (In our experience, this series of products are efficient in removing fresh oil stains.)

They are easy to use, they have to be sprinkled on the stain and left for a period of time. They are attractive from the user’s point of view. But, unfortunately, there is a downside, they are very expensive. Also remember that the effectiveness will depend on the quality of the concrete and the severity of the stain. Sometimes this type of product won’t work at all.

Concrete cleaner. How to remove rust stains from a concrete garage floor?

When people try to remove rust from the concrete. They curse a lot and often swear at the products that have used .The problem is that the rust is dissolved easily in acid, but if you remember, hardened Portland cement can be permanently damaged by using it, so using acid is not a very good idea.

However, there are real good solutions to to obtain good results. Those are:

  • Home products.
  • Commercial products.
  • Concrete cleaning agents.

Home products

If you are a DIY enthusiast, you can first try your own home remedies by using a mild acid such as lemon juice or vinegar. They act well on small stains. Both contain acid that dissolves rust. However, lemon juice and vinegar are weak acids, and they are usually not strong enough to act on rust without harming the concrete. It usually depends on the specific concrete and the size of the stain.

It is worth noting that acids do not remove oil from concrete. If the rust stain is surrounded by an oil stain, first remove the oil stain using one of the methods mentioned above.

Using vinegar or lemon juice, apply them to the stain, let it remain for a few minutes, then scrub the surface. To complete this process, rinse the area and check. You may need to repeat this process several times.

If you have a stain that is large or difficult to remove, try removing it with vinegar. You can find it in most supermarkets.

Those who look a bit courageous enough to risk a bit  they can try stronger acids if lemon juice or vinegar don’t remove the stains. Oxalic, citric and muriaticacids are commonly used to clean concrete and masonry. However, mixing and using them together  can be very dangerous.

You will need to mix these acids yourself and determine the correct strength by testing different times. For example, the often mentioned initial dilution is to add muriatic acid to the water at a ratio of 1:10 (remember always to add acid to the water, not the other way around!). Also, you MUST be careful to make sure you mix these chemicals properly and always add acid to the water and be careful about the amount of time you leave the acid on the concrete as it can damage it very quickly and severely.

WARNING: try any cleaning method on a small area in order to test its efficiency

Concrete cleaner. Commercial products

There are alot of  products on the market that will help you remove rust from concrete. You can also do this with Conlix and Conlix-Bio liquids. The only thing you have to be careful about is the strength you want the fluid to act with. Conlix is a solvent  that most customers dilute with water. Conlix-Bio is a ready-to-use liquid, the main ingredient of it is an endemic plant.

The two product remove dried concrete from machines, lime efflorescence, as well as oil, grease, grease and rust stains.

Conlix and Conlix-Bio liquids can be acquired on the website: https://concreteremover.co.uk/.