Advantages of Polyaspartic Polyurea in Bridge Steel Structure Protection

The use of steel structures in construction has been extensively applied due to their excellent mechanical properties, strong load-bearing capacity, and ease of industrialized production. Among these applications, bridge steel structures are particularly widespread, serving not only as links across waterways but also as aerial roads over land, playing a significant role in transportation.

However, bridge steel structures are often exposed to outdoor environments for long periods, making them susceptible to chemical, electrochemical, or physical interactions with their surrounding medium. This exposure can lead to material degradation and failure of corrosion protection, significantly reducing the lifespan of bridge constructions and posing a substantial threat to traffic safety. Therefore, corrosion protection for bridge steel structures is a critical engineering challenge.

Polyaspartic polyurea coatings are a two-component, high-performance, environmentally friendly polymer material. They can form a dense, continuous protective layer on the surface of steel structures, effectively isolating them from air and resistance to various chemical mediums. These coatings also boast excellent decorative and weather-resistant properties, maintaining their color and resistance to aging even under long-term ultraviolet radiation exposure.

Additionally, polyaspartic polyurea coatings exhibit strong adhesion and flexibility. When applied to bridges and other structures subject to vibrations and displacements, they prevent cracking and peeling more effectively than thinner, less flexible coatings, such as epoxies.

Moreover, polyaspartic polyurea also features exceptional waterproofing capabilities, able to withstand prolonged submersion. This quality is not only effective in preventing atmospheric corrosion of steel structures but also provides excellent protection for underwater sections, making it widely applied in the waterproofing sector.

Feiyang has been specializing in the production of raw materials for polyaspartic coatings for 30 years and can provide polyaspartic resins, hardeners and coating formulations. Some of our polyaspartic coating formulations: Polyaspartic Coating

Feel free to contact us: marketing@feiyang.com.cn

Our products list:

• Polyaspartic Resin
• Isocyanate Hardener
• Special Chemical

Learn more polyaspartic knowledge: Polyaspartic FAQ

Shenzhen Feiyang Protech Corp., Ltd. specializes in researching and producing polyaspartic polyurea resin and other new chemical products. We are recognized as a "National Special New Key Little Giant" and a "State-level High-tech Enterprise", with more than 50 polyaspartic polyurea invention patents. We also participated in the preparation of 13 industry standards for polyaspartic polyurea materials as a leading company in this field, ranking No.1 in the Chinese market.

In the coating industry, polyaspartic polyurea is used in construction machinery, automobile, containers, fan blades, marine heavy corrosion protection, and high-end industrial and commercial floor coatings. In the adhesive field, it is mainly used in sealants, stone adhesives, electronic adhesives, film circuit packaging adhesives, and other high-end applications. In the waterproofing materials sector, it is primarily used in hydroelectric dams, water parks, building waterproofing repair materials, and other areas. In the structural materials field, it is applied to curling tracks, artificial ice skating rinks, and other structural materials.

Polyaspartic polyurea is considered a high-end new material in the strategy of manufacturing power. We have broken the foreign technology monopoly and filled the domestic market gap. Due to its comprehensive characteristics of "Environmental protection, Energy saving, and Long durability", polyaspartic polyurea can contribute to the realization of genuine carbon neutrality in the coatings, adhesives, and materials industries.

Since 2012, Feiyang polyaspartic ester resin has been supplied overseas. It has been widely used to replace Bayer's current polyaspartic system in many coating companies and has been applied in anti-corrosion and waterproofing by international coating companies.