Polyurea Coating

Polyurea is a liquid sprayable substance that, once hardened, becomes one of the best and most affordable coatings, even when subjected to enormous loads. Polyurea is a completely inert, environmentally friendly product.

Unlike epoxy coatings, polyurea coatings are not susceptible to UV rays and, therefore, are not prone to yellowing. They offer speedy application and fast hardening, which allows for quick utilization of coated surfaces.

Polyurea is a synthetic polymer designed to provide durable protection against corrosion and damage. Its waterproofing qualities and abrasion protection make it a popular choice for industrial settings, for instance, floor coating or construction equipment coating.

Polyurea Coating Benefits

Polyurea cures in just a few seconds and is known for its high strength and durability; it is highly resistant to a wide range of chemicals, is suitable for use on both smooth and uneven surfaces, is crack-resistant, retains its properties over a wide temperature range, and can be used for waterproofing, coating, insulation, and repair.

Polyurea coatings boast such physical properties as:

Scratch resistance and proven impact resistance

The material can withstand severe force and endure physical wear without distortion, which makes it suitable for surfaces that experience repeated physical stress and friction. For instance, it's a common thing to pick it for garage floor coating since the garage floor is intended to be incredibly durable and bear car weight, as well as the car's frequent movement.

Temperature resistance

Besides abrasion resistance, polyurea coatings also boast the ability to counter high or low temperatures while maintaining their functionality. It makes them a good solution for outdoor applications: storage facilities, pipelines, or any buildings located in harsh environmental conditions.

Water resistance

Thanks to their molecular structure, polyurea coatings are insensitive to humidity. They form a moisture barrier, safeguarding different surfaces against water-induced damage. These may work best for rooftops and concrete structures like swimming pools or reservoirs.

Chemical resistance

Polyurea coatings exhibit durability against corrosive chemicals and other types of chemicals. As part of their operation, conveyors in industrial environments usually come into contact with corrosive substances. Coatings like polyurea protect conveyors, prolonging their longevity.

Excellent resistance to UV radiation

Polyurea's application improves resistance to yellowing, which is perfect for outdoor applications to minimize damage from sun rays. In areas with intense UV rays, polyurea coatings protect surfaces from damaging effects, prolonging the surface time span and boasting an attractive, glossy appearance.

Polyurea applications encompass diverse purposes. It is a widespread solution used in commercial settings, defense and security sectors, the auto industry, and many others. These numerous applications include:

  1. Automotive industry and load handling: coating of dump trucks, namely the truck bed liners that store and transport abrasive coal or metallic ores, mining and construction equipment, and other heavy loads during transportation, which ensures their protection from frictional forces, continuous scratching, or collision with rough surfaces.

  2. Industrial and commercial applications: coating for conveyor systems and other machinery, floor coating, coating for tank reservoirs that allow for safeguarding them from corrosion, moisture, and wear caused by heavy equipment, foot traffic, and spills of caustic chemicals.

  3. Pipes and irrigation: A base coat of polyurea can help to prevent pipe cracking, wearing off, and leaking thanks to such properties as high resilience in varying environmental conditions and strong adhesion to diverse surfaces.

  4. Military industry: coating military buildings, coatings for ballistic missile systems, military equipment coating, etc. The correctly prepared surfaces serve the purpose of resisting attacks, as the coating can absorb explosive energy.

Polyurea Coatings Types

Polyurea coatings come in different types, depending on mechanical properties, installation processes, and chemical structure. There are two main types of polyurea:

Pure polyurea

Pure polyurea is entirely impervious to moisture, which makes it a popular choice for waterproofing. It is subdivided into aliphatic polyurea and aromatic polyurea.

Aliphatic polyurea is a more expansive option and exhibits such properties as perfect protection from UV rays and long-lasting performance. Its advantage is evident when it comes to outdoor structures since this coating prevents discoloration. Aromatic polyurea, on the other hand, is not as good for surfaces exposed to sunlight as a top coat. However, when high mechanical strength is required, aromatic polyurea provides a truly robust solution.

Hybrid coating

A hybrid coating is usually polyurea blended with polyurethane. It boasts properties that bridge the attributes of both pure polyurea and polyurethane. Although it may not have as much mechanical strength and chemical resistance as pure polyurea, it's more suitable for cases where stretching, humidity resistance, and durability are necessary. For instance, manufacturers use it for protective coatings on roofs to create a moisture-tight seal and decorative floor finishes resistant to scratches.

Whether you need a coating that withstands UV radiation, is immune to ambient temperature, the one to protect the surfaces from the impact of abrasive materials, or a coating with other mechanical properties, a coatings business will help you pick the type that will do the better job!

Polyurea Application Process

The process involves several key steps, such as preparation of the surface, mixing up resin and catalyst or other components, and spraying this mixture on the surface until the coating reaches the desired density and desired setting time. After waiting for it to set, it's also crucial to inspect the results, making sure everything is in order.

There are also optional stages, such as applying a primer to enhance the bonding strength of the surface and the polyurea coating. Also, if a single coat is not enough for the best protection or good looks, you can apply another layer when the previous one has hardened.

Polyurea coatings typically require the use of special equipment (like high-pressure sprayers and mixing equipment) as well as specialized tools, which makes them less suitable for amateurs. That is why seeking professional assistance is a wise solution to guarantee the high-quality performance of the coating.

Polyurea Coatings by USASPRAYME

USASPRAYME employs innovative methods to make polyurea coatings versatile and reliable. There's a multitude of benefits that polyurea by USASPRAYME offers, encompassing:

  • Quick hardening of the material (2–5 minutes to complete curing) that minimizes overall application time;

  • Exceptional strength in terms of both longevity and impact resistance;

  • Additional properties like protection against liquids, chemical substances, extreme temperatures (acting as insulation), etc.;

  • Versatile implementation includes roof coating, sealing decks from water, waterproofing basement areas, protecting ductwork, and applying protective coatings to concrete surfaces like walkways.

If you book a free inspection, USASPRAYME will send seasoned experts in the field of polyurea application to the site, where they can evaluate the specific conditions of the area. Then, the dedicated professionals will use their extensive knowledge and honed practical skills to deliver top-notch, tailored solutions for each project. Reach out to ensure that your polyurea coating demonstrates optimal performance!

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Frequently Asked Questions — FAQ

Is polyurea cheaper than epoxy?

The cost of the coating depends on the type of polyurea. When it comes to aromatic polyurea, it is typically cheaper than epoxy. However, it's not suitable for surfaces exposed to direct UV rays. As for aliphatic polyurea coatings, they present a more costly option due to their glossy appearance and the fact that they're highly resistant to fading and UV-ray-induced loss of properties. This way, before making your choice, it's advisable to consider the physical properties of the material and correlate them with the intended use.

What are the disadvantages of polyurea coatings?

Despite many benefits, the use of polyurea material poses several challenges. Firstly, it's hard to apply polyurea properly without training. It typically necessitates sophisticated spray equipment and rigid following of the instructions. During the application process, it is sensitive to moisture and hardens so quickly that it leaves less time for adjustments. Moreover, before applying the first coat, make sure to grind or otherwise prepare the surface. It's crucial because, if done incorrectly, it can result in weak adhesion and come off over time.

Can you apply polyurea yourself?

If you decide to apply a garage floor coating on your own, you should note that this coating cures rapidly, so the polyurea application should be fast and accurate. Without prior practice, it will be difficult to achieve high-quality results. That is why we recommend considering professional help. However, if you are still determined to do it on your own, don't forget about protective clothing, gloves, respirators, and special tools like buckets with mixing sticks, masking tape, roller frames, and so on.

Does polyurea have good elongation properties?

Yes, these coatings can stretch significantly, which means they move together with the surface they're applied to. This useful characteristic is beneficial in environments such as bridges, where temperature changes can cause concrete to expand. Or, for example, in industrial facilities, where the equipment may experience high vibrations. If the coating can move without loss of bonding, the surface remains protected.

In what aspects does polyurea surpass polyurethane?

In harsher environments, polyurea is a more sought-after option due to its resilience to temperatures, moisture, and chemical exposure. Also, it has high values in tensile strength, which allows it to efficiently safeguard surfaces from any mechanical influence, be it rubbing, scratching, or hitting. Polyurea coatings can bridge small cracks, preventing any further splitting or delamination.


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