New water-based rust-resistant anti-rust coating technology for steel structures of S235 steel

1.Technical principles
The new water-based anti-rust coating technology for S235 steel structures is mainly targeted at the surface of rusty steel structures. The rust layer is effectively transformed through the bottom layer of water-based rust conversion paint, and then sealed through the middle layer of anti-corrosion paint and coated with a topcoat for color adjustment. This structure can greatly improve the anti-corrosion and anti-rust capabilities of S235 steel.

2.Construction method
Base material treatment: Before construction, the base material can be simply treated, such as using water jets, steel brushes, electric brushes and other tools to remove floating rust, unstable foreign matter on the metal surface.
Apply water-based rust conversion paint: Apply the water-based rust conversion paint directly on the surface of the rusted steel workpiece. After 10-20 minutes of surface drying, the rust will form a black chelate with good stability.
Applying anti-corrosion paint and neutral topcoat: After the middle layer of the water-based anti-corrosion paint is dry, the water-based toning top paint can be applied. The top paint can be a water-based anti-rust paint composed of modified acrylic resin and pigments and fillers of the required color.

3.Technical advantages
Environmental protection: Use water-based paint to reduce VOC emissions and reduce environmental pollution.
Efficient: Able to achieve better rust prevention effect without complete rust removal, saving time and cost.
Durability: The coating has good wear resistance and anti-aging properties and can protect the steel structure for a long time.

4. Detection of anti-rust coating thickness
In order to ensure the effectiveness of the anti-rust coating, it is very important to conduct regular coating thickness testing. Commonly used detection methods include X-ray detection and ultrasonic detection. Through these detection methods, the thickness and distribution of the coating can be accurately understood, and problems can be discovered and solved in a timely manner.

As a commonly used steel, S235 steel's anti-rust coating technology is of great significance in extending the service life of the structure. The new water-based rust-proof coating technology for steel structures has gradually become a mainstream choice in the market due to its advantages of environmental protection, high efficiency and durability. Through reasonable selection and application of anti-rust coating technology, the S235 steel structure can be effectively protected and its corrosion resistance and service life improved.

S235steel structure