Polyurea Coating – A Brief Guide

Polyurea spray coating offers high-performance polyurea coats, which are developed by a chemically-assisted reaction of two substances. These coats are multi-use and serve various purposes, such as roofing, flooring, road coating, bedliners, and bridges. This material is also used in the production of polyurea lining in the manufacture of tires and other automotive products. It is also used in the lining of bottles and cans, as well as polyurea spray on fabrics and polyurea spray on plastics.

polyurea coating

During a polyurea coating application, there is a combination of formation and breaking of the molecules that compose the polyurea. The formation of the polyurea takes place through a series of chemical reactions. One of the most significant events in the development of polyurea is a isocyanate reaction, which is a key step in polyurea development. The isocyanate reaction is initiated by the inclusion of one of three different chemicals: n-acetyl-dihydroxyacetic acid (ADA), n-butylaminoethyl (BAE), or n-amine.

The isocyanate reaction initiates the first phase of polyurea coating development. During this reaction, the polyurea liquid is dispersed on the surface of the resin. This is followed by precipitation and cooling. The process continues in succeeding phases as the solution cools and dries.

As the polyurea coating process develops, other chemical reactions take place to initiate other coatings and products. Among these reactions are formation of water-soluble polyurea compounds and formation of non-water soluble polyurea compounds. These two processes, collectively, enable polyurea protective coatings to protect against ultraviolet radiation. UV rays can cause broad range of health problems including skin cancer and cataracts. Therefore, polyurea protective coatings play a significant role in the treatment of such health problems.

Polyurea spray coatings are known for their wide availability and flexibility. The polyurea spray can be applied on a wide array of substrates including metals, ceramics, plastics, and textiles. The polyurea coating can also be used on smooth flat or irregular surfaces. Some polyurea spray coatings even have the ability to adhere to a wide range of textured or embossed surfaces.

With polyurea coating, the surface preparation procedures will differ from one application to another. Most of the times the application process will depend on what the surface is and the kind of protective coating that would be used on it. For example, it would work better with cold dip galvanized steel than with hot dip galvanized steel. Thus, the proper surface preparation is a crucial factor. The more the proper surface preparation is done, the higher would be the chances of success of the polyurea coating application.

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