How To Paint A Concrete Basement Floor - Tools & Step By Step Guide 2021

How To Paint a Concrete Basement Floor - Tools & Step by Step Guide 2021

Last updated: 24 April, 2021

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Enhance your unfinished basement floor with the paint of your choice with these simple steps to make it look presentable.

You have been waiting to paint your concrete basement floor for such a long time but don’t know where to start? Don’t get in a flap; we have got you covered. This article provides a step-by-step guide on how to paint a concrete basement floor. A properly done basement can increase the worth and space of your house. If you do some thought process, you can make great use of its space. It can be turned into a living room, study room, mini theater, gym, kids play area, and whatnot.

An unfinished basement doesn’t give off a nice look. If you put in little effort into painting its floor, you can turn it into a luxurious living area. Basement floors are often made up of concrete which looks unattractive if kept undone. You can use epoxy, masonry, latex, oil-based paints, acrylic, and much more for your concrete flooring as they are durable. A properly painted concrete floor alone can change the whole look of your basement. Let us find out in detail how to paint a concrete basement floor?

Before painting your concrete basement floor, make sure you have all the tools and material readily available. If not, make a list and get them, so you don’t have to rush to get the things during the process. You have to make sure you have all the tools by your side that are crucial for the process. Listed below are some of the tools and materials you will need for painting a basement floor.

Tools to Use

  • Paint roller for applying paint on the larger area of the floor

  • Paintbrush to cover the corners and edges of the concrete surface

  • Tack cloth for cleaning purposes

  • Vacuum to get rid the surface of all the dust particles

  • Paint sprayer/compressor

  • Trowel

  • Bucket

  • Mop

  • 80-Grit sandpaper

  • Other Material

  • Stain blocker

  • Degreasing solution

  • Concrete sealer

  • The paint of your choice

  • Primer

Cleaning the Floor

The first and most essential step in painting a concrete basement floor is cleaning it to the core. Concrete tends to hide a lot of dust and dirt, which, if not removed properly, prevents the paint from sticking properly. The first thing you need to do is mop off all the debris and dirt to make it ready for painting. After that, run a vacuum cleaner over the surface since the concrete floor is porous, so it hides many dust particles.

If your concrete floor is already painted, you might also want to sand it for even application and repeat the whole process.

Washing and Acid Flush

Once you are done cleaning the concrete surface, you need to wash it with a degreasing solution and give it an acid wash. Degreasing solution will clean the concrete surface from grease and oils. Moreover, the acid wash will eliminate any mineral deposits that are formed with time. After all these processes, your concrete surface will be free from all contaminants.

Now, let the floor dry completely with HVAC and dehumidifiers so the paint can set properly. Once the floor is completely dried, you can also run sandpaper on all the uneven areas to make it even. Use a tack cloth to clean any residue on the surface.

Finish the Cracks & Depression

After you have made the surface completely clean and have wiped all dirt off it, you need to fill all the cracks and holes. Remember any crack or hole on your concrete floor will lead to moisture seepage. It is essential to treat all the openings on the floor to protect your paint for long years.

For that matter, you will need a concrete patching compound, also known as acrylic latex formula. With the help of a trowel, push the compound into all the cracks, holes, and depression and level it. Let it dry for some time until it hardens to make it ready for painting.

Surface Sealing

Once you have filled in all the cracks and holes that you need to seal the concrete surface for long-lasting durability. It is an imperative step in painting a concrete basement floor. It seals all the pores to prevent moisture from getting into them. In addition to that, it prevents the concrete from surface damages and corrosion. Furthermore, concrete sealers act as a barrier and prevent the previous paint from bleeding. It can make a lot of difference and keep the paint intact for a long time. You can apply the sealer with the help of a paintbrush or a roller. Also, you can use a paint sprayer for even application.

Priming the Concrete Surface

Priming the concrete surface allows for better bonding of the paint to the surface. The primer consists of binders that contract and expands with the concrete as the weather changes. Primer can be applied conveniently with a paint roller evenly. For maximum effects, apply two coats of primer and give proper drying time in between each coat.

Paint Application & Sealing

Then comes the focal point that requires great precision and vigilance. The first thing you need to do you will do is decide what type of paint you want. For instance, epoxy gives an elegant and gleaming finish to your concrete floor and requires minimum maintenance. You will need a paint sprayer or a paint roller for the application.

Both the tools give an even finish; however, you can use a paintbrush for the corners and edges. Apply 2 to 3 coats of paint and give it a drying time between each coat. Let the paint fully cure for about 24 to 72 hours to make it adhere properly. After applying the paint, seal it with a masonry sealer to make the paint last longer. Apply 2 to 3 layers of paint sealer and let each coat dry for about an hour.


What kind of paint is used on concrete?

You have many choices in using paint for concrete floors, among which epoxy and masonry paints are the best options. They are durable and last you longer than you have imagined. Masonry paints have binders in their formula, which move with the concrete as it expands and contracts. In contrast, the epoxy paint doesn’t move with the concrete but is durable and low maintenance.

What is the best paint for concrete?

Many top-ranking companies manufacture top-of-the-line paints for concrete that promise reliability and durability. For instance, Rust-Oleum, Kilz INSL-X produces some of the best paints that give long-lasting protection to your concrete floor.

Do I need to prime my concrete before painting it?

Priming is an essential step before applying paint on the concrete floor for proper adhesion. If you don’t prime the concrete surface, chances are the paint will chip off shorter than it should. Some paints come with a self-priming formula, so they don’t require priming before their application.

Is painting the concrete basement worth it?

Painting your concrete basement floor is definitely worth your money and effort. It makes it look 10 times better and increases the worth of your whole house. Also, the formula of the paint is such that it safeguards the concrete floor from deteriorating prematurely.

Does concrete paint need a sealer?

Indoor concrete floor paints need to be sealed as they are prone to moisture seepage. Moisture seepage gives rise to mold and mildew invasion, which leads to several issues. Therefore, it is necessary to seal the concrete and paint from moisture damages.


It is always a wise decision to paint your basement floor because it will not only adorn it but also make it valuable. You can use several different paints to apply on your concrete basement floors to make them look presentable. For instance, you can use masonry, acrylic, epoxy, latex, and many more. There are certain steps you can follow to conveniently apply paint to your concrete basement floor. By following these simple steps mentioned above you can change the whole look of your basement for good.

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