If you’ve ever noticed bubbles in your epoxy floor, you’re not alone. There are many reasons it can happen, and the most common are related to trapped air, moisture, pores, and improper preparation of the concrete surface.

The trapped air creates unsightly scarring on your concrete, which can ruin the overall look of your floors if left unchecked.

In this article, we’ll cover the causes of bubbles in epoxy floors and how to prevent them in the future.

Causes Of Bubbles In Epoxy Floor

Different situations can cause bubbles in epoxy flooring. From moisture underneath the surface to outgassing and poor preparation, it’s not uncommon to notice air pockets on newly coated concrete.


Outgassing is a common cause of bubbles in epoxy floors. Outgassing is a process where trapped air in concrete is released. It results in bubbles in epoxy that look like small blisters or pinholes in the flooring.


Moisture can react with epoxy coatings causing it to separate and bubble in some areas. This is more likely if the coating is applied in a humid environment, or if the moisture content in the concrete is not adequately accounted for.

Improper Surface Preparation

Surface preparation is crucial in a quality concrete coating installation. The priming step is how the substrate is initially sealed to prevent bubbling in the coating. If the job is done sloppily, bubbles in epoxy are sure to ensue.

If the epoxy is mixed improperly, the density of the coating can be compromised, which causes bubbling as well.

Solutions For Bubbles In Epoxy Floor

Preventative measures can be taken to avoid the bubbles on the epoxy floor. Ultimately, intentional preparation of the surface is key to avoiding this error.

To prevent bubbles in epoxy from porous concrete, ensure the primer is evenly applied during the preparation process. Extra primer may be applied as well. This will keep the surface sealed so that bubbles do not become an issue once the final coat is applied.

Outgassing bubbles can be prevented by popping them during the prime coat installation. Your contractor can take a roller over the surface to prohibit any bubbles in the epoxy floor and fill in the area with a primer that halts the process.

If you’re worried about bubbles on the epoxy floor, leave your epoxy flooring project to the experts. We’ve perfected our processes to prohibit these types of issues, saving you time, money, and preventing stress.

Why Choose Cardinal Concrete Coatings

Arizona home and business owners trust Cardinal Concrete Coatings because our processes and systems are backed by high-level results for each of our clients. We prioritize honesty and integrity in our business practices, which allows us to maintain a high standard in our work. Every step we take is geared to ensure that you are 100% satisfied with your project.

We guarantee that we’ll use the highest quality materials on your project and prepare the surfaces intentionally to avoid issues like bubbles in epoxy flooring.

Whether you need pool deck coatings or garage floor coatings, we’ve got you covered. We also provide driveway coatings, patio coatings, concrete coatings, commercial coatings, epoxy garage floor coatings, and polished concrete coatings. Contact us today to see how we can help.

Get A Free Quote

Are you looking for epoxy flooring services in Arizona? Do you want to work with the best concrete coating contractors in the area? Look no further than Cardinal Concrete Coatings. We’re professional contractors who provide competitive pricing for our services and value honesty and integrity in our business practices. If you’re ready to transform your flooring, contact us today for a free quote.

Leave a Reply

Your email address will not be published. Required fields are marked *