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Why Is My Epoxy Floor Yellowing?

Keep your floors bright and clear.

Epoxy floors are strong and durable, making them a popular choice for both commercial and industrial settings. However, one downside to epoxy floors is that they can turn yellow over time. There are several reasons why epoxy floor yellowing might happen, but luckily there are also ways to prevent it. Read this article to learn some simple tricks for longer lasting floors!

Why Does Epoxy Floor Yellowing Happen?

Epoxy floors are usually known for their durability even in harsh conditions, and their beautiful finishes! From clear coats to metallic, epoxy floors are just as stunning as they are strong. Over time, though, you might notice your epoxy floor yellowing. Why does epoxy floor yellowing happen? There are three main reasons why epoxy floors might turn yellow:

— You leave your epoxy floors exposed to UV (ultraviolet) damage. This is the biggest threat to epoxy floors. Even ambient UV exposure can damage epoxy over time.

— You did not seal the epoxy floor correctly. An improperly sealed epoxy floor will be much less resistant to possible UV exposure.

— You used the wrong type of resin for your space. If you’re installing an epoxy floor in an outside or unshaded area, it may be a smart decision to use a UV resistant resin, like polyaspartic.

An image of a quartz epoxy floor pool deck and patio.

How to Prevent Epoxy Floor Yellowing

There are a few things you can do to prevent your epoxy floor from turning yellow:

— Use a UV-resistant epoxy resin. Many companies distribute UV stable resins that are just as strong as traditional epoxy. Between the SPARTACOTE brand of clear coat polyaspartic resin, and ETC’s UV stable polyaspartic topcoat solution, you have some great choices in resins for your floors!

— Seal the floor properly. In general, practicing smart installation techniques and getting the details right will help the floor last for the long term. Although yellowing is generally unavoidable with a resin that isn’t UV stable, you can delay it for a long time with proper installations!

— Reduce your floor’s exposure to UV. Ambient UV exposure will still yellow your epoxy floors over time, but you will avoid severe yellowing for a long time just adding some shade in your space.

— Choose a different epoxy style. Instead of a clear coat flake finish for your epoxy pool deck floors, consider installing a quartz style! Its coloring & silica sand broadcast will hide any yellowing considerably better than a clear coat finish.

Join Our Epoxy Installation Training Program!

An image showing an epoxy contractor teaching a class on installing epoxy.

Do you want to learn more about epoxy floors and how to install them? We offer a 5 day epoxy training and certification program built just for you! We designed this program for those who want to learn how to install epoxy floors professionally, and start making money installing today. You’ll learn about the different types of epoxy, how to prepare a floor for epoxy, and how to apply it correctly. Contact us today to learn more about our Epoxy Classes program!


We know you want to keep your epoxy floors clear and beautiful for the long term. Epoxy floors will yellow over time, though. To prevent your epoxy floor from turning yellow, use a UV-resistant epoxy resin, seal the floor properly, choose a different style or use polyaspartic resin instead of traditional epoxy. These simple tricks will help you maintain your gorgeous floors!

Do you have questions about installing UV resistant epoxy floors, or maintaining your floors? Our team of specialists at (954) 287-3797 are only a call away from helping you! For your UV stable resin needs, the EpoxyETC online store can distribute whatever you need, at prices to fit your budget.

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