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Difference between Epoxies and Polyureas

Difference between Epoxies and Polyureas

When it comes to coating and lining materials, there are a few popular options on the market: epoxy and polyurea. both have their pros and cons, but which one is the best for your specific needs? Here’s a look at the key differences between epoxy and polyurea.

What is Epoxy?

Epoxy is a term that is used to describe a wide variety of strong, adhesive materials. Epoxies are made up of two main components: a resin and a hardener. When these two substances are mixed together, they create a chemical reaction that results in a durable, brittle material. Epoxy is often used to create strong bonds between metal, glass, and wood. It is also commonly used as a coating for concrete and other surfaces. Epoxy is available in both liquid and solid form, and it can be customized to meet the specific needs of any project.

What is Polyurea?

Polyurea is a durable, weather-resistant polymer that can be used in a variety of applications. It is often used as a protective coating for metal surfaces, and can also be used to create various waterproofing and insulation products. Polyurea is created by combining two chemicals, a polyisocyanate, and a polyether amine. When these two substances react, they create a strong bond that is resistant to both heat and cold. Polyurea can be applied as a liquid or a spray, and curing time is relatively short compared to other types of Polymers. As a result, Polyurea has become increasingly popular for use in a variety of industrial and commercial applications.

Difference between Epoxies and Polyureas

Epoxy and Polyurea are two different types of coatings that are often used in industrial and commercial settings. Epoxy is a thermosetting plastic that is created by combining two reactive chemicals. Once the epoxy has cured, it is extremely strong and durable. Polyurea, on the other hand, is a synthetic polymer that is created by combining polyisocyanate and resin. Polyurea cures quickly and forms a flexible, yet strong, bond. Both epoxy and polyurea coatings are resistant to abrasion and chemical damage, but polyurea is typically more resistant to high temperatures. Epoxy is also generally more expensive than polyurea. As a result, Epoxy is typically used in applications where chemical or temperature resistance is paramount, while Polyurea is often used in applications where flexibility and cost are more important considerations.


Epoxy and Polyurea are both two-part, moisture-curing coatings. They have different chemical makeups which give them different properties. Epoxy is a thermoset resin that becomes crosslinked when it cures, while Polyurea is a thermoplastic elastomer that does not form any bonds during the curing process. Because of this difference in chemistry, epoxy coatings are more brittle than polyurea coatings. Epoxy also has a higher tensile strength than polyurea but lower elongation before breaking. Polyurea is more flexible and resilient than epoxy and can stretch up to 400% without breaking.

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