Seawater corrosion is mainly caused by chloride ion attack. Chloride ions can penetrate and damage the protective oxide layer on metal surfaces, leading to pitting, crevice corrosion, or intergranular corrosion. When tensile stress is applied to the metal, cracks may form in areas where the passive film is compromised, creating an anodic region in a galvanic cell. This electrochemical process can eventually lead to metal failure. Notably, this type of corrosion is not highly dependent on the concentration of chloride ions—even trace amounts can trigger stress corrosion. However, temperature plays a significant role in accelerating the process.
Zhisheng Weihua ZS-711 seawater anti-corrosion coating is specifically designed to combat these challenges. It consists of a new generation of inorganic polymers combined with nano-sized metal oxides, activated rare earth powders, and advanced metallic materials. These components react rapidly with iron atoms on the metal surface, forming a dual physical and chemical protective barrier. This innovative coating provides long-term resistance against chloride ion penetration, effectively protecting the underlying metal from seawater-induced corrosion.
Seawater typically contains around 3.5% dissolved salts, primarily sodium chloride, along with smaller amounts of magnesium chloride, potassium sulfate, and calcium carbonate. The pH of ocean water is slightly alkaline, usually around 8. Despite constant changes in the composition of seawater over time, its fundamental properties have remained relatively stable for millions of years. Given this, coatings like ZS-711 are essential for ensuring long-lasting protection in marine environments.
The ZS-711 coating developed by Zhisheng Weihua is highly targeted and effective against various forms of seawater corrosion. Its unique formulation ensures that metals and other materials remain protected even under harsh conditions. With its advanced technology and proven performance, it has become a reliable solution for industries operating in coastal or marine settings.
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Editor: (Hardware Business Network Information Center)
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