Views: 0 Author: Jiangsu Shuocheng New Materials Technology Co., Ltd. Publish Time: 2026-09-29 Origin: Site
As the core load-bearing carrier of factories, infrastructure, and equipment structures, steel structures are often exposed to the atmosphere, water vapor, dust, and even mildly corrosive media for a long time. Corrosion, peeling, and coating failure are the most common wear and tear problems. Although oil-based coatings can provide short-term protection, their shortcomings such as high VOC, flammability, and high environmental compliance pressure are becoming increasingly prominent. Whole system water-based coating has become the mainstream direction for upgrading steel structure anti-corrosion.
As a leading manufacturer of environmentally friendly industrial coatings, we have built three mature and practical water-based coating systems for steel structures based on the national standard corrosion environment level (C3 general protection/C4 strengthened protection/C5 strict protection), which are suitable for different project working conditions and facilitate engineering selection, drawing filing, and bidding.
One:C3 general protection: single component water-based steel structure special paint system
Applicable scenarios: Inland ordinary factory buildings, indoor steel structures, dry factory workshop structures, and conventional building steel components without acid and alkali corrosion mist
·Product Name: Water based Steel Structure Special Paint
·Construction method: Single layer coating or multiple layers of simple coating.
The biggest advantage of this single component system is its easy operation. It can be diluted and mixed with clean water, has low threshold for construction tools and personnel, good adhesion, and can resist conventional atmospheric oxidation and slight rainwater erosion. The comprehensive cost-effectiveness of large-scale component construction is high, suitable for basic anti-corrosion protection in internal factories and dry environments.
Secondly：C4 enhanced protection: modified two-component composite coating system
Applicable scenarios: suburban industrial areas, mild chemical industrial parks, outdoor factory building structures, semi outdoor equipment supports, steel structures in rainy and humid areas
·Matching combination: water-based modified epoxy primer+water-based modified epoxy intermediate coat+water-based modified acrylic topcoat
·Construction method: three complete composite coatings of the bottom, middle and surface can be applied according to the design thickness of the coating and anti-corrosion requirements. The number of modified epoxy primer can be increased to provide anti-corrosion protection. The modified epoxy intermediate paint will build a dense isolation barrier, and at the same time, the thickness of the filled anti-corrosion paint film will be increased. The modified acrylic acid surface layer will resist the scouring of ultraviolet rays and rain. The three-layer structure will be stacked layer by layer, greatly improving the anti-aging and water vapor penetration resistance, and perfectly adapting to the outdoor moderate corrosion environment.
Three、 C5 Strict Protection: High performance two-component heavy-duty anti-corrosion system
Applicable scenarios: coastal salt spray areas, chemical corrosion plant areas, dock equipment, outdoor heavy engineering machinery, long-term high humidity and high corrosion working conditions
·Matching combination: water-based epoxy zinc rich primer+water-based epoxy cloud iron intermediate paint+water-based acrylic polyurethane topcoat
·Construction method: The complete set of three layers of heavy-duty anti-corrosion composite coating on the bottom, middle, and surface is a water-based system with heavy-duty anti-corrosion and complete matching. The zinc rich primer provides cathodic rust protection, the cloud iron intermediate paint constructs a dense isolation barrier, and the acrylic polyurethane topcoat has excellent weather resistance and chemical resistance. The overall resistance to salt spray, acid and alkali, and temperature difference deformation is fully developed. Faced with harsh working conditions such as coastal sea breeze salt corrosion and chemical waste gas corrosion, the paint film can still be maintained intact and stable, greatly reducing the cost of later repair and maintenance. It is often used in high standard heavy-duty anti-corrosion engineering projects.
Supplementary alternative primer scheme
For special heavy-duty anti-corrosion projects, we can also provide special water-based primers such as water-based inorganic zinc rich primer and water-based cold coated zinc primer to further improve the cathodic protection level of steel structures and meet higher standards of engineering bidding and design specifications
In conclusion
From conventional factory buildings to coastal heavy corrosion projects, we provide a complete set of water-based heavy corrosion protection for various steel structures, ranging from light and easy coating to C5 harsh environments. With a mature water-based coating product system and standardized construction services, we build a long-term anti-corrosion barrier for all types of steel structures. If you have requirements for steel structure new construction coating, old component renovation anti-corrosion, or engineering technology solution docking, please feel free to communicate and exchange ideas at any time, and provide suitable water-based coating landing rules as needed.
About Us
One stop water-based paint solution service provider
We are a source factory specializing in independent research and development and production of water-based industrial paints, deeply cultivating a full range of categories such as water-based amino baking paint, metal anti-corrosion paint, and hardware topcoat, The company adheres to craftsmanship and quality, aligns with international standards, continues to promote global layout, and is committed to serving the global market with domestically produced green coatings.
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