What You Need to Know About Yellowing Epoxy Resin
Many contractors and floor owners feel frustrated when a beautiful epoxy floor loses its luster and develops a yellow hue over time. While all epoxy resins will eventually yellow when exposed to UV light, it doesn't have to be a major problem. At Empire Coating Solutions, we believe that understanding the causes is the first step toward effective prevention.
Understanding Why Epoxy Turns Yellow
The primary cause of epoxy yellowing is exposure to sunlight and its UV radiation. This process is known as photodegradation, where UV light breaks down the molecular bonds within the epoxy's polymer structure. This gradual breakdown is what causes the resin to turn yellow, especially in clear or light-colored finishes. Environmental factors like temperature and humidity during the initial cure can also play a role.
The quality of the product also matters. A high-quality resin and hardener mix will resist yellowing much better and for a longer period than a lower-quality alternative.
Strategies for Preventing Yellowing
While no epoxy is completely immune to yellowing, these strategies can help you effectively fight back and preserve your floor's vibrant appearance.
Choose a UV-Resistant Coating: The most effective way to prevent yellowing is to select a product that is specifically designed to resist UV rays. Polyaspartic coatings are inherently UV stable and are an excellent choice for floors in direct sunlight.
Control the Environment: You can't control the weather after installation, but you can control it during the application. Proper temperature and humidity management during the curing process can create a stronger bond and help the coating resist the effects of environmental factors later on.
Ensure Proper Sealing: Using proper sealing techniques during installation creates a barrier that can delay the onset of yellowing and help the epoxy maintain its original color for an extended period.
Conclusion
While epoxy yellowing is a near-inevitable challenge, you have the power to fight back. By understanding the causes and implementing the right strategies, you can ensure your floors remain beautiful and vibrant for years to come. A holistic approach—from choosing the right product to mastering the installation—is key.
For the right products and expert guidance on your next project, contact Empire Coating Solutions.
