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Polyurea Waterproofing Solutions

◣ Product Description

Polyurea elastomers are compounds formed through the reaction of an isocyanate component (referred to as Component A) with an amine‑containing component (referred to as Component B). Spray‑applied polyurea elastomer (SPUA) technology, developed over the past two decades abroad, represents a new solvent‑free, environmentally friendly construction technique designed to meet growing environmental protection requirements. It follows in the footsteps of low‑ or zero‑emission coating technologies such as high‑solids coatings, waterborne coatings, radiation‑cured coatings, and powder coatings.
Spray‑applied polyurea elastomer technology is hailed as the greatest breakthrough in the coatings and painting field at the end of the 20th century, earning the reputation of a “universal” coating. By integrating cutting‑edge technologies, advanced materials, and innovative processes, it represents a revolutionary leap forward compared with conventional construction methods. Its emergence has redefined traditional notions of corrosion resistance and protective performance, setting a new, higher standard for the materials‑protection industry.

◣ Scope of Application

●防腐

It is suitable for various underground pipelines and transport pipelines, including heavy-duty anti-corrosion applications for steel pipes, castings, and chemical equipment and ancillary facilities in industries such as oilfield and chemical engineering.
● Leak-proofing

It can be used for roof waterproofing in high‑rise buildings, as well as for seepage control and resistance to water‑flow erosion in subways and highways.
● Waterproof and leak-proof

It can be used for anti-corrosion of the inner and outer walls of desalinated water tanks in power plants, for internal corrosion protection of circulating water pipelines, for corrosion and seepage control in drainage trenches, and for corrosion and seepage prevention in wastewater treatment ponds, among other applications.
● Protection

It can be used for corrosion protection in projects such as cross-sea bridges, offshore drilling platforms, ship decks, and cabin floors. It also provides wear resistance and corrosion protection for various industrial flooring applications and is suitable for tennis courts, basketball courts, badminton courts, and surface protection of running tracks.
● Decoration

It can be used for stage productions, film sets, and advertising prop fabrication; as well as for creating artificial natural landscapes, amusement parks, museums, and a wide range of toy‑like cartoon character designs and decorative entertainment installations.

◣ Design and Thickness Selection Table for Spray-Applied Polyurea Protective Coatings for Waterproofing and Corrosion Protection

Type of Work and Location of Use	Design Grade	Polyurea type	Sprayed polyurea protective coating thickness (mm)
Concrete Roof Waterproofing Project	Waterproof and Corrosion-Resistant Grade I	Waterproof and corrosion-resistant type	≥2.0
Concrete Roof Waterproofing Project	Waterproof and Corrosion-Resistant, Grade II	Waterproof and corrosion-resistant type	≥1.5
Concrete Roof Waterproofing and Thermal Insulation Works	Waterproof and Corrosion-Resistant Grade I	Waterproof and corrosion-resistant type	≥2.0
Pit and Pond Waterproofing Works	One	Waterproof and corrosion-resistant type	≥2.0
Railway Bridge Deck Waterproofing	Waterproof and Corrosion-Resistant Grade I	Waterproof and corrosion-resistant type
Container Corrosion Protection	>15 years	Waterproof and corrosion-resistant type	≥2.0 inside and outside the enclosure
Common corrosion protection	One	Rigid anti-corrosion type	≥2.0
Architectural decoration	One	General-purpose anti-corrosion type	≥1.2
Wear-resistant lining	One	General-purpose anti-corrosion type	≥2.0
Color steel tile roof	Waterproof and Corrosion-Resistant Grade I	Waterproof and corrosion-resistant type