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Polyaspartic vs Epoxy: What’s the Difference?

Are you looking to make a composite part of an industrial product? Or perhaps you’re playing around with some ideas in your garage and tinkering with binding agents?

There are many choices for bonding materials in engineering and manufacturing. Unfortunately, not all of them are equal in quality or efficiency.

Polyaspartic vs epoxy is an ongoing debate within many industries, from bicycles to computers. Both are insoluble high-temperature adhesives with many industrial uses.

Is it time to decide on using polyaspartic vs epoxy? Which one should you go for? Continue reading to learn more.

Chemical Composition

Polyaspartic and epoxy are both resin-based polymer composites. They are a combination of chemical compounds.

The primary difference between the two is their chemical composition. Epoxy consists of a network of polymer chains formed from a variety of epoxide and other derivatives such as:

  • Polyamines
  • Ketones
  • Bismaleamides

Polyaspartic is formed from a combination of:

  • Polyaspartic acid
  • Polyisocyanurates
  • Diisocyanates

This hybrid has greater resilience than epoxy and has a higher elongation and impact resistance. Polyaspartic is used in the automotive industry to protect against UV rays and abrasion-epoxy. It offers enhanced protection and performance in specific applications.

Drying Process

The significant difference is that epoxy dries hard. Polyaspartic goes through more of a curing process and dries softer.

The curing process of polyaspartic takes much less time than epoxy, sometimes as little as an hour. Epoxy takes around 24 to 36 hours to cure and set.

Depending on the application, the drying process could be beneficial. It may be helpful to have a quicker drying time with polyaspartic.

Polyaspartic and epoxy drying processes are significantly different. It is essential to know the differences when considering which material to use for different applications.

Application Methods

Polyaspartic and epoxy are both used in many industrial and commercial applications.

Epoxy requires air to cure the product, while poly aspartic does not. This makes it an advantageous choice for flooring applications. Heat or ultraviolet light can accelerate the curing process.

Polyaspartic can be applied in much thicker layers than epoxy. Because of the improved performance that polyaspartic offers, it is becoming popular in industrial and commercial applications.


Polyaspartic and epoxy coatings are popular flooring choices due to their strong and durable protection against wear and tear. However, they offer drastically different levels of durability.

Polyaspartic coating is sold in pre-applied liquid form and offers excellent protection from wear and tear. But they are not meant to withstand heavy foot traffic over long periods.

The epoxy coating offers improved durability and chemical resistance. These are better suited for areas with frequent high volumes of traffic.

They are much more challenging to apply and often require professional installation, but the long-term protection is unrivaled. Consider hiring a reputable flooring contractor in Kansas City. They can make a recommendation based on your needs.

Slip Resistance

Polyaspartic and epoxy both provide excellent slip resistance. They have a range of advantages and disadvantages when getting a non-slip surface.

Polyaspartic offers superior scratch and abrasion resistance along with chemical and stain resistance. This makes it the best in areas with heavy traffic.

Epoxy finishes are more UV resistant and generally cheaper than polyaspartic. But they don’t have the chemical and stain resistance that polyaspartic has.

In terms of providing slip resistance, both types of coatings can provide this depending on the type of aggregate used.

Epoxy is best for interior applications. Polyaspartic is best for exterior applications. Both types of floor coatings also come with additives that can further improve slip resistance.


Polyaspartic and epoxy coatings can offer the same level of concrete protection but differ in longevity. Polyaspartic coatings are harder. They have more stain and UV resistant.

They offer a longer-lasting coating that can be installed quickly without limiting the product’s useful life. It is also less costly to maintain in the long run when compared to epoxy coatings.

On the other hand, epoxy coatings are more affordable to install. But it can still result in a long-lasting finish with proper care and maintenance. They have a shorter lifespan but can withstand heavier wear and tear.

Depending on the environment they are being used in, either type of coating will be suitable. Depending on the chosen product and installation process, they can offer a longer life.

Water Resistance

Polyaspartic and epoxy are the two leading water-resistant coatings used in the painting and coating industry.

While both coatings offer a water-resistant layer, there are a few key differences between them. Polyaspartic is a two-component resin paint system that dries to a water-resistant finish.

Epoxy also forms a water-resistant protective layer. However, it is a three-component system. It has slightly longer wait times between coats.

Epoxy coatings are known for being highly chemical and environmentally resistant. This can be beneficial for specific industrial applications.

With water resistance, it is essential to consider the full scope of the project and the environment before selecting the right product for the job.

Introducing Polyaspartic vs Epoxy

Polyaspartic and epoxy both have their advantages and disadvantages. Polyaspartic is more resistant to UV and highly durable, while epoxy offers more decorative options.

Ultimately the best choice for any given situation depends on the application. So, consider your needs and determine which coating is best for you. Don’t hesitate to contact your supplier for further advice on polyaspartic vs epoxy.

Did you enjoy this article? Check my blog for even more helpful resources.


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