The revolutionary significance demonstrated by the application of the heavy-duty anticorrosive coating system.

Corrosion prevention of metal materials is a costly battle, with the emphasis on protection. To prevent corrosion, various anti-corrosion methods have been developed, among which anti-corrosion coatings offer a more direct and cost-effective solution.

Corrosion-resistant coatings and coating technologies essentially involve seeking coating materials that can directly contact medium environmental factors and possess resistance capabilities, replacing metal surfaces (for protection) and thus preserving the integrity and normal operation of metal structures or equipment. Most metal materials face issues of corrosion and protection. The corrosion principle of steel has many commonalities with other metals, which is why steel is often the primary object of study when researching the principles of metal corrosion and protective methods. According to the corrosion factors, environmental conditions, and surface states, the mechanisms of metal corrosion can be categorized into chemical corrosion, electrochemical corrosion, and multi-factor corrosion. The main methods to prevent metal corrosion must be considered comprehensively from both the metal and the medium aspects. In the selection of equipment and engineering materials, under the premise of meeting the main technical, process, and economic indicators of production, materials with good stability under given corrosion conditions should be used as much as possible. Corrosion-resistant materials should be coated over the protected base material, preventing direct contact with the corrosive medium to avoid corrosion damage.

In the design of anti-corrosion coating systems, the application of different purposes is often based on the performance characteristics of the film-forming substances. Longyuan Naxin conducts comprehensive working condition analysis, coating system design, and provides customized solutions. For instance, the polymer anti-acid and alkali corrosion coating, which serves as the primer, utilizes phenolic modified epoxy resin with chemical properties as the main film-forming substance. The polytetrafluoroethylene anti-acid and alkali corrosion coating, using chemically inert modified polymer and resin as the film-forming substance, ensures that the entire coating system forms a networked three-dimensional structure during the drying process, capable of withstanding high concentrations of strong acids and alkalis, as well as chemical corrosion. It also balances adhesion and weather resistance, making it a new type of heavy-duty anti-corrosion coating system for severe corrosion conditions. In most cases, the coating system consists of primer, intermediate coat, and topcoat. The primer has high adhesion and bonding power to the substrate and topcoat, along with corrosion inhibition and rust prevention. The intermediate coat acts as a transition layer, providing anti-seepage protection. The topcoat resists corrosive media and external stresses, with the three layers working together to achieve the overall effect.

Heavy-duty anticorrosive coatings are actually a comprehensive anticorrosive coating system. Due to their ability to withstand severe corrosive environments and provide long-lasting corrosion protection, their application range is extensive, covering all fields of modern industry. This includes power industry applications such as thermal power boilers, wind power equipment, transmission and transformation equipment, nuclear power equipment; modern transportation infrastructure like bridges, docks, ships, and containers; emerging marine engineering facilities such as offshore structures, coastal and gulf constructions, and offshore drilling platforms; and essential applications in large-scale chemical, steel, metallurgical, and energy industries involving pipelines, storage and transportation, and industrial furnaces. This system is characterized by its usability in chemical and marine environments for 10-15 years, and in acidic, alkaline, saline, and solvent corrosive media, as well as under extreme temperature conditions for over 5 years. Therefore, it is a high-performance, high-film thickness coating. As such, it is always placed at the forefront of anticorrosive coatings in various countries, particularly in industrialized nations.