Polyurea Spray: Waterproofing, Strong Protection Against Corrosion and Abrasion

In industrial and construction applications, the challenges posed by sudden and unexpected mechanical wear have clearly demonstrated the necessity of innovative and high-performance material solutions. For example, rigorous efforts to counteract corrosion and impact effects that threaten the structural integrity of critical facilities have accelerated the shift toward advanced polymer systems. As a result of scientific research, polyurea has emerged as a leading solution due to its rapid curing process through a controlled reaction between isocyanate and urea, offering exceptional durability. With outstanding chemical resistance and mechanical flexibility, polyurea provides a revolutionary solution for surface protection.

What is Polyurea?

As a high-performance elastomer, polyurea stands out as a coating technology in construction, industrial, and infrastructure projects due to both its chemical composition and application method. It is a 100% solid-content, two-component, solvent-free, and VOC-free environmentally friendly material.

Applied using specialized high-pressure spray equipment, polyurea ensures seamless adhesion to surfaces and cures within 3-4 seconds, making it ready for use almost immediately.

Compared to traditional coating methods, polyurea is unique due to its:

Faster application
High flexibility (250%-800%), allowing crack bridging
Superior protection against abrasion, chemicals, corrosion, and UV radiation

This makes polyurea coatings an effective solution for:

Flooring and waterproofing applications
Industrial surface protection
Sealing expansion joints

Additionally, due to its easy-to-clean nature and antibacterial properties, it is frequently preferred in hygiene-sensitive areas. Since it cures quickly during application, it saves both labor and time, allowing projects to be completed more efficiently.

How is Polyurea Spray Coating Applied?

The superior physical and chemical properties of polyurea spray coatings are directly related to the correct selection of materials in their formulation. Isocyanates and amine-terminated resins form the primary components of these coatings, and due to their high reactivity, they cure within seconds to create a durable surface. In spray applications, high-pressure spray machines are used to ensure the material spreads homogeneously over the surface and achieves optimal adhesion performance. Additionally, depending on the application area, polyurea formulations can be enriched with UV stabilizers, fillers, pigments, and chemical resistance-enhancing additives to achieve different physical properties. The correct ratio of these materials and a controlled application process guarantee maximum resistance of polyurea coatings against scratches, abrasion, impacts, chemicals, and UV radiation.

Application Areas of Polyurea Spray Coatings

Polyurea spray coatings are preferred in various fields requiring waterproofing, abrasion resistance, and structural and chemical protection. Thanks to their rapid application, seamless structure, and long-lasting performance, they offer a wide range of uses. The most common application areas include:

Waterproofing Applications

Terrace and roof coatings
Swimming pools and decorative ponds
Water tanks and boiler waterproofing
Outdoor and landscape sub-surface waterproofing
Retaining walls and foundation insulation

Industrial and Infrastructure Applications

Parking lot floors and ramp coatings
Aircraft runways and helicopter landing pads
Bridges and viaducts
Asphalt and concrete-covered floors
Fuel storage tanks and chemical containers

Public and Commercial Buildings

Grandstands and sports halls
Mosque domes and historical structure protection
Factories and production facilities
Ceramic and metal surfaces

Polyurea spray coatings contribute to the longevity of modern structures by providing high flexibility, impact resistance, and superior protection against environmental factors.

Advantages of Polyurea Spray Coating

Polyurea offers numerous advantages, including high durability, fast application, and a wide range of uses. Compared to traditional coating methods, it provides a superior solution in terms of both physical and chemical resistance. Here are the key advantages of polyurea spray coatings:

Chemical and Mechanical Resistance

It is environmentally friendly, as it contains no solvents or volatile organic compounds (VOC).
Composed of 100% solid content, it offers high resistance to chemicals and abrasion.
Provides excellent mechanical and chemical resistance, ensuring long-term protection against wear, impact, and corrosion.

Fast and Efficient Application

Cures within as little as 10 seconds, allowing the surface to be traffic-ready in 15-20 minutes.
Applied seamlessly, eliminating joints and completely preventing water leakage.
Can be applied to an area of 800- 1000 square meters per day, enabling rapid project completion.
Can be applied on vertical surfaces without sagging.

Flexibility and Ease of Application

Has an elongation capacity of 250% – 800%, providing excellent crack-bridging capability.
Perfectly adapts to curved and complex surfaces, offering flexibility in structural engineering applications.

Waterproofing and Corrosion Protection

Completely waterproof, preventing moisture buildup, corrosion, and wear within structures.
Blocks water absorption, ensuring the surface remains durable for many years.
Resistant to plant chemicals and root growth, making it a reliable choice for landscaping and waterproofing projects.
Adheres perfectly to various surfaces, including concrete, metal, ceramic, and wood.

Economic and Aesthetic Advantages

Saves labor and time, reducing maintenance costs due to its fast application.
Can be customized with desired colors and patterns, offering various aesthetic options.
Extends the building’s lifespan, reducing maintenance expenses and increasing its overall value.

Thanks to all these features, polyurea spray coatings have become one of the most preferred coating solutions among engineers, architects, and construction professionals.

How is Polyurea Spray Coating Applied?

Since polyurea spray coating is a fast-curing and high-performance system, it should be applied by professional teams using the appropriate equipment. Following all steps carefully, from surface preparation to the final coating, ensures durability and longevity.

Surface Preparation: For the coating to adhere perfectly to the surface, the application area must be free of dust, dirt, oil, and moisture. If necessary, the surface should be roughened. The use of a primer is mandatory for proper adhesion.

Equipment Preparation: Polyurea coatings are applied using specialized high-pressure and temperature-controlled spray machines.

Coating Application: Since polyurea spray has a rapid curing feature, it adheres to the surface instantly and solidifies within seconds. The spraying process is carried out in layers to achieve the desired thickness.

Final Checks and Readiness for Use: Once the entire surface is coated, the area is ready for use within approximately 15-20 minutes. However, for the coating to reach its full performance, a 24-hour chemical curing period must be completed.

Thanks to its fast application, seamless structure, and superior durability, polyurea spray coating provides long-term protection against water infiltration, abrasion, and corrosion. Professional application is a critical factor in ensuring the efficiency and longevity of the coating.

In this regard, KIMcase® Coating Systems, one of Kimpur’s high-performance solutions, offer effective and reliable results.

KIMcase^® Coating Systems

High Performance Solutions

Coating systems are layers of material applied to surfaces to provide protection against corrosion and wear while enhancing surface properties. KIMcase® Coating Systems, which can be applied to concrete surfaces, consist of pure polyurea and hybrid polyurea systems.

Pure Polyurea System

The pure polyurea system is a two-component, environmentally friendly, spray-applied surface coating and waterproofing material. It protects surfaces against abrasion, rust, and corrosion, offering 400% ± 50 elongation and containing no volatile organic compounds (VOCs).

Provides 100% waterproofing.
Ensures seamless, monolithic insulation.
Resistant to harsh weather conditions.
Offers high resistance to various chemical components and solvents.
Possesses excellent crack-bridging ability.
Highly resistant to hydrolysis and aging.
Quick and easy to apply.
Provides high thermal stability and moisture resistance.
Offers high load-bearing capacity.
Adheres strongly even on vertical surfaces without sagging.

Hybrid Polyurea System

The hybrid polyurea system is a two-component, environmentally friendly, spray-applied coating and waterproofing material that protects surfaces against abrasion, rust, and corrosion. It contains no volatile organic compounds (VOCs).