A step-by-step tutorial on how to paint concrete floors in a basement using concrete paint.
A fresh coat of paint can liven up any room or item. And why not update your basement concrete floors with a fresh coat of paint? This tutorial is a guide to show you how to paint concrete floors or any concrete floor, like the garage floor.
This project is part of this month’s At Home DIY challenge. Every month there is a different DIY challenge, and this month it’s “Update with paint”. After my how-to tutorial, there is a link to other DIY home bloggers projects, so be sure to check those out.
Let’s get back to how to paint a concrete floor.
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STEP 1: Prep the surface
The first step of painting is always the most important and can take a while to complete. By prepping the surface, it gives you the finish you want and helps it to hold up over time.
So let’s discuss how you need to prep the concrete floor before painting. Some of these steps you might not need to do, but here’s the list.
- Remove items off the floor – I hope you understand that you need to remove items from the floor to be able to paint it, this can be carpet or stuff. Here is what my room looked like before:
- Remove any adhesive – if your floor has any adhesive stuck to it, this adhesive needs to be removed.
- Fill in holes – if you happen to have any cracks or holes in your concrete, you will want to use a concrete filler to fill these in. I would recommend a Concrete Fix Sealant.
- Sand the floor – this might sound funny, but if you want a smooth concrete floor finish, you will want to sand any rough areas. I would recommend a block sander to sand a small area but if you need to sand most of the floor, I would think about using a bigger machine.
- SIDE NOTE: This will make some dust, so wear a mask and tape off areas you don’t want dust in.
- Vacuum – Take a construction vacuum, like a shop-vac, and vacuum the floor to remove the dust and debris from the floor.
- Clean the floor – Now that the floor is free of dust, you need to wipe it clean with soap and water. I like to wash the floor with soap, then go over it again with just water to make sure no soap residue is left.
Let the concrete dry entirely before paint, I would recommend giving it at least 8 hours, but I let it sit 24 hours to be entirely sure.
SIDE NOTE: I did waterproof the cinder block walls and paint them before painting the floors. If you are wondering how to do this I have a tutorial about how to waterproof cracks in a foundation and a tutorial about how to paint cinder block walls so be sure to check those out.
STEP 2: Paint the concrete floor
Now that the concrete is prepped, you can start painting. I would recommend using concrete paint and follow the instructions on the container.
I decided to try Behr’s Porch and Patio concrete paint in grey and after reading the instructions I determined I didn’t need to prime the floor because the concrete had already been painted. After completing my floor, next time, I want to try priming the floor first to see what kind of finish this gives me.
So if you need to prime the floor, do that first before the paint.
If you’re wondering how to open a can of paint, be sure to visit my post all about it, plus there’s a video with the instructions.
To start painting, cutting in around the edges of the floor with a paintbrush.
After cutting in, use a roller to paint all the other areas of the floor.
TIP: Apply the paint in the far corner and work your way to the entrance. You don’t want to paint yourself in the corner.
Allow the paint to dry according to the instructions on the can. Then apply a second coat the same way.
Depending on your paint, you could be done, but if you want a better protective finish, apply some concrete sealant or sealer over the painted concrete floor.
I didn’t apply the sealant on my floor because I was on a deadline. But it would differently help protect the floor, and I plan on using it in my laundry room when I repaint that concrete floor.
Once everything has dried according to the instructions on the can, move stuff into the room, and enjoy your painted concrete floor.
To give you an even better idea of the process, I have created a video to show you how I painted my concrete floor.
I hope this tutorial will help you see how easy it can be to update your concrete floor with paint, whether its a basement floor or garage floor.
For more inspiration on updating with paint, be sure to see all the other projects from this month’s challenge.
Interested in more
- How to fix chipped concrete steps
- How to create concrete landscape edging
- How to use self-leveling concrete