Dayou Surface Technology –Surface Treatment Manufacturer

Chongqing Dayou Surface Technology Co., Ltd.

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Dedicated to becoming a supplier of rust-prevention products throughout the entire lifecycle.

Specializing in the research, development, production, and sales of new materials and new processes for surface modification of ferrous metals.

About Us

Owner of the invention patent for
zinc-nickel diffusion coating

2007

The company was founded in 2007.

55000 ㎡

The production base covers a total area of 55,000㎡.

40 +

More than 40 researchers

30 +

Over 30 invention patent certificates of various types.

Chongqing Dayou Surface Technology Co., Ltd.

Chongqing Dayou Surface Technology Co., Ltd., established in 2007, is a high-tech enterprise specializing in the research, development, production, sales, and technical consulting of new materials and processes for surface modification of ferrous metals. The company has been honored with the “Specialized, Refined, Differentiated, and Innovative” Small Giant Enterprise title by the Ministry of Industry and Information Technology and is recognized as a National Demonstration Enterprise for Intellectual Property. It operates a postdoctoral research workstation, an academician and expert workstation, and an enterprise technology center, with a research team of over 40 members. The company boasts strong R&D capabilities and has obtained more than ten national invention patents and international invention patents, as well as over 20 utility model patents and proprietary technologies. It has also participated in the formulation of industry standards in Chongqing Municipality. Among its achievements, the “Zinc-Nickel Diffusion Coating Process for Corrosion Protection of Ferrous Metals” was awarded an Excellence Prize in the National Invention Patent Competition.

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What's Our Product

Steel Component Product Series for Bridges

Relying on core zinc-nickel diffusion coating technology for corrosion protection, this solution is ideally suited for harsh environments such as bridges, docks, and marine engineering projects. It boasts exceptional corrosion resistance and a structurally robust and reliable design, providing comprehensive rust prevention throughout the entire lifecycle of bridges and serving infrastructure projects across numerous provinces and cities nationwide.

Bolt Fastener Product Series

Utilizing technology awarded the National Invention Patent Excellence Prize, the coating exhibits significantly superior corrosion resistance compared to conventional galvanized coatings. It features low hydrogen embrittlement and high wear resistance, making it ideal for applications in rail transit, petroleum, petrochemical, and other similar environments. This ensures long-term stability of connection points and supports the upgrade of high-end equipment to enhanced corrosion protection.

Embedded Product Series

Specifically designed for applications such as rail transit and railway construction, this product undergoes a zinc-nickel diffusion coating process. It boasts exceptional corrosion resistance and excellent installation compatibility, precisely matching the embedded requirements of track beds to ensure the long-term safe operation of infrastructure projects.

Power Supply System Product Series

Focusing on the anti-rust needs of power supply facilities and integrating black metal surface modification technologies. With excellent weather resistance, it can withstand erosion from complex environments, providing full-cycle protection for transmission towers and power equipment, and is suitable for power system construction across multiple industries.

Line System Product Series

Developed specifically for railway and rail transit line applications, this product employs advanced surface modification technology. It offers superior corrosion resistance and durability, boasts high adaptability, and ensures the stable operation of metallic components along railway lines, thereby supporting high-quality, long-term development of infrastructure projects.

PRODUCTS

Application Industry

The product has been successfully applied in industries including railway construction, rail transit construction, bridge and wharf construction, offshore wind power equipment, marine engineering equipment, petrochemical machinery, construction machinery, and JG.

Railway

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Rail transit

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Bridge pier

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Offshore wind power equipment

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Marine engineering equipment

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Petroleum and Petrochemical Machinery

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