Importance and performance requirements of anti-rust coating for S235 steel

S235 steel is a commonly used steel with good mechanical properties and processing properties. Its main properties include high strength and good corrosion resistance. Understanding these basic properties is crucial for subsequent research on anti-rust coatings.

1. The importance of anti-rust coating
Steel structures are prone to rust in humid or corrosive environments, resulting in reduced structural strength and shortened service life. Therefore, the use of appropriate anti-rust coating technology is of great significance to protect steel structures.
2. Types of anti-rust coatings
Currently, there are two main types of anti-rust coatings on the market: solvent-based and water-based. Although solvent-based coatings are relatively low-cost, they produce a large amount of volatile organic compounds (VOC) during the construction process, causing environmental pollution. In contrast, water-based coatings are environmentally friendly and harmless to human health, and have gradually become the mainstream choice in the market.
3. Performance requirements for anti-rust coatings
a. An excellent anti-rust coating should have the following properties:
b. Strong adhesion: The coating is tightly bonded to the steel surface and is not easy to fall off.
c. Good corrosion resistance: It can effectively prevent steel corrosion in various environments.
d. Convenient construction: The construction process is simple and easy to operate.
e. Good wear resistance and anti-aging properties: the coating has good durability and can maintain the protective effect for a long time

S235