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Home » How Hard is Epoxy Resin?: The Science Behind Epoxy Strength

How Hard is Epoxy Resin?: The Science Behind Epoxy Strength

Epoxy strength is excellent.

If you’re looking for a durable and strong flooring material, epoxy resin might be the perfect choice for you. In this article, we’ll discuss the science of epoxy resin and why it is so strong. We’ll also look at the limits of epoxy strength and how long you can expect it to last. So, how hard is epoxy resin? Let’s find out!

What is Epoxy Resin?

Epoxy resin is a polymer that is extremely strong and durable, making it a popular choice for many types of flooring materials. Installers compose epoxy resin of different parts, including epoxide and other chemicals. They will mix these components together in a process called ‘curing,’ which forms the epoxy polymer. This conversion from liquid to solid creates an incredibly strong material that can withstand significant levels of stress and pressure.

The Science Behind Epoxy Strength

At the molecular level, long chains of molecules known as polymers make up epoxy resin. These chains form interlocking bonds with one another, giving epoxy resin its remarkable strength. In addition to the nature of its structure, epoxy resin is also strengthened by a process called crosslinking. During crosslinking, chemical reactions take place between polymer molecules, further reinforcing the material’s bonds and increasing its strength even more.

What Are the Limits of Epoxy Strength?

Although epoxy resin is incredibly strong, it does have some limitations. For example, well applied epoxy has a high tensile strength, but simple errors during installation can dramatically reduce its strength. In addition, epoxy resin can crack and chip under extreme conditions, such as exposure to extreme climates or sudden changes in climate, consistent heavy wear, and harsh chemical spills.

An image showing a commercial space with a floor supported by epoxy strength.

How Strong is Epoxy Resin?

Epoxy resin has an exceptionally high tensile strength, which measures the force required to break something in half. This means that epoxy resin can withstand a great deal of pressure and stress without breaking. Additionally, its compressive strength, which measures the force applied when something is crushed or squeezed, is also quite high. In fact, epoxy resin can easily withstand weights up to several thousand pounds without breaking or deforming.

Install More Durable, Stronger Floors!

An image of a concrete and epoxy professional teaching how to maximize epoxy strength.

Whether you want to learn new skills, or enhance your knowledge, we’ve designed our Epoxy Classes program with your success in mind! Our team of veteran installers will be there by your side over the course of 5 days as you learn everything you need to know about installing epoxy floors. So join today! We’ll teach you the basics of installing floors, running your epoxy flooring business and more.


So, how hard is epoxy resin? The bottom line is that it is one of the strongest and most durable materials available today. Whether you’re looking for a flooring material that will last for years or a protective coating for your most valuable possessions, epoxy resin is an excellent choice. With its incredible strength and durability, epoxy resin is the perfect option for any floor that requires extreme resilience and toughness.

Our technicians are only a phone call away at (954) 287-3797! We’re here to help you with any questions from DIY to contracting and more. Our EpoxyETC online store will deliver the resources you need at affordable rates!