Types of resin flooring and its applications (Part IV)


Polyurea resin flooring
Polyurea is an elastomeric product resulting from the reaction between a compound of isocyanate and a mixture of synthetic resins. It is one of the most durable types of protective coatings in the world, which due to its high chemical, physical and thermal resistance, is widely used in anti-corrosion coatings industries of oil, gas, petrochemical, water, and sewage, industrial and laboratory flooring, sealing, Has security and military and. In fact, due to its unique mechanical properties, Polyurea acts as an extremely hard, integrated, flexible, and abrasion-resistant coating.
It is chemically resistant to any damage by alkalis, acids, and petroleum products. Polyurea is resistant to bacterial corrosion, is environmentally friendly, and is easy to clean. This product has numerous applications in military industries, oil and gas, and petrochemical industries, reinforcing worn structures.
Polyurea is two components of the latest types of technology in the coating and flooring industry. Polyurea systems are sometimes referred to as improved polyurethanes, but although there are common properties between Polyurea and polyurethane, polyurea technology is a unique technology. The high durability of this coating makes it up to twenty times more resistant than epoxy and up to ten times more resistant than polyurethane.
Resistant to salt, oil, gas, and corrosive chemicals. It is 98% more flexible than epoxy and allows concrete to move. Polyurea does not crack and does not rise from the surface. Polyurea has been used for 25 years in various industries, including pipe coatings, tanks, refineries, and pickup trucks.

Benefits of Polyurea

  • Ability to use quickly after execution
  • Installation and execution in the form of spraying with a smooth as well as glossy surface
  • Excellent elongation
  • Development of good physical as well as chemical resistance
  • Excellent resistance to UV rays
  • Excellent resistance to abrasion, corrosion, tearing, and impact
  • Thickness 1000 microns, seamless, smooth and integrated, and no cracks
  • Rapid reactivity, without the use of catalysts
  • Can be used in temperatures from minus 20 degrees Celsius to 135 degrees Celsius
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Fast-drying, high flexibility, high heat resistance, and abrasion resistance make Polyurea the best choice for most surfaces. Other uses of Polyurea are anti-corrosion systems, which have made it widely used in marine industries, ports, ships, and generally in areas exposed to moisture and chemicals.
Polyurea is one of the newest types of coatings in the world. This two-component coating has high adhesion to most surfaces and has high optical stability and longevity. The most significant advantage of Polyurea is its fast drying (less than one minute), making it a suitable option for all surfaces, including vertical surfaces, opposing slope surfaces, and surfaces that need to be loaded quickly. Due to the rapid drying of this coating, the two components can not be mixed and then applied, but it is necessary to use special equipment that after rapid mixing of these two components, the product is sprayed with pressure. The technician of this device sprays the coating so that the thickness of the applied coating is the same everywhere and the integrity is wholly maintained. Due to its unique properties, Polyurea has an extensive range of applications and goes far beyond moisture and corrosion insulation or industrial and sports flooring.

Wide operating temperature range (from minus 20 degrees Celsius to +150 degrees), setting time very fast and in just a few seconds, creating extraordinary compressive and tensile strength of the surface or structure under the coating against the low thickness of the coating (up to 280% Compressive strength up to 35 MPa), resistance to most chemicals, acid, and alkali, no damage to the environment and many other properties have led to it being called the miracle of the century. No additional cover can be Do not use; Polyurea will become the definitive solution.

But in general, it has many applications in the following industries:

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Sealing: This category is used as a seal and moisture insulation in sealing tunnels, pools, lakes, foundations, urban tunnels, and subway and roofs of buildings.

Reinforcement: It is used in earthquake resistance of buildings, in train tracks to prevent vibration, especially in the old texture of cities and.

Anti-corrosion: This product is widely used as anti-corrosion in transmission lines and storage tanks for oil, petroleum liquids, water, gas, chemicals, as well as the ship’s deck and water intake. This formulation is designed so that in addition to creating a barrier against moisture, it has excellent adhesion to the substrate and strengthens the cathodic protection.

Flooring: Due to rapid drying and high physical and chemical resistance, as well as increased adhesion, it is used in areas that need to be returned to fast service, increased traffic, and need a long life.

Military Industries: Due to its extraordinary properties, Polyurea is widely used in the military industry as a coating for explosion-proof military and emergency structures, vehicle threats against military threats, and bulletproof vests. Due to its high adhesion and flexibility, this coating prevents the disintegration of energy caused by the explosion by creating a protective layer on the wall of various military and security buildings, ammunition dumps, and sensitive places, as well as the body. Of armored vehicles…

Nuclear energy: Experiments performed on polyurea insulation show that it is very suitable for preventing radiation from radioactive materials; it is widely used in containers and wagons carrying radioactive materials. Unlike epoxy coatings, this insulation does not require permanent maintenance. The creation of 100% seamless insulation creates a solid protective barrier against the release of destructive materials and objects. Polyurea insulation is also highly resistant to most chemicals and industries.

Passive defense and defense industries: Using polyurea coating in high thicknesses, the structure can be made resistant to dynamic loads caused by the explosion. This feature can be used to protect strategic facilities.

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Applications of Polyurea

  • Covering canals and concrete sewage facilities
  • High coverage of cryogenic insulation such as (polyurethane foam)
  • Moisture insulation of concrete surfaces
  • GeoMembrane replacement in artificial seas
  • Moisture insulation in Roof Garden system
  • Cover surfaces subject to high wear
  • Use as industrial flooring
  • Protection of chemical units

How to implement Polyurea

  1. A) Preparation of surfaces

The work surface must be free of any oil, grease, grease, and loose and worn parts. It is recommended to use the mechanical method of surface preparation by grinding to remove loose parts on concrete, mosaic, and stone surfaces. Concrete surfaces must have appropriate mechanical strength and be reinforced according to DIN 1045 or DIN 28052 standards and must not have loose cement coatings and plasters. If necessary, metal surfaces should be sandblasted, or wire brushed to remove rust and dirt.

  1. B) Execution method

After preparation, if necessary, all surfaces are leveled with a suitable grout and mortar to provide a suitable substrate for the final coating. Then it is cleaned and vacuumed, and a special polyurea primer is applied on the surfaces with a roller or brush. Finally, the polyurea coating is transferred to a particular mechanical device in two parts, and after preheating and mixing, it is sprayed on the surface at the nozzle.
After implementing this system, it should be noted that it can be traveled for 20 minutes, and after 24 hours, it can be loaded, which significantly increases the startup speed.

Note 1: Execution of Polyurea is a specialized and technically very complex task, and it is recommended to use a professional and experienced team.
Note 2: Since the polyurea system has different grades such as hybrid, pure, aromatic, and aliphatic, etc., choose the right cover for your use, consult the technical department of the company, and the relevant technical information and specifications.

Photo Credit: AdobeStock

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