Comparison of the application and use of metal low surface treatment coating systems and conventional coating systems

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This post was last edited by Wang Wei2 on 2023-9-6 11:36 Comparison of the coating and use of metal low surface treatment coating systems and conventional coating systems 1. According to traditional understanding, the coating life of conventional anti-corrosion coating systems is restricted by three factors: Surface treatment, accounting for 60% ； Painting construction, accounting for 25% ； The quality of the paint itself accounts for 15%. For secondary maintenance of steel structures, etc., they cannot reach Sa2.5 level at all. Therefore, the metal surface treatment of equipment and steel structures is a relatively difficult problem to solve. Using current anti-corrosion technology methods, metal surface treatment hinders the service life of the paint coating, and some corrosion problems cannot be solved using surface engineering technology. It is important to use anti-corrosion materials with low surface treatment. If metallic paint can ensure that equipment and steel structures are maintenance-free for 15 to 50 years, * * It improves the safety and service life of equipment and steel structures, and can save a lot of maintenance costs. 2. Main construction characteristics of low surface treatment coating system: ①The requirements for rust removal of steel structures are low, as long as the floating rust on the metal surface is removed ； ②Save labor and time, simple construction technology ； ③The product can be adjusted according to the temperature and humidity of the on-site construction environment. To achieve the best construction results. Its advantages are as follows: ⑴Convenient and fast construction: The construction is convenient, the construction time can be shortened, and the comprehensive construction cost can be reduced. ⑵Combine with other coating layers: The anti-corrosion coating has good aging resistance, no loss of gloss and good corrosion resistance. It can be used in conjunction with other paint topcoats, or it can be "integrated into one bottom surface". ⑶Low temperature construction: The anti-corrosion coating has a certain low-temperature flexibility and can be constructed at low temperatures higher than -15°C. It is especially suitable for anti-corrosion construction in the Northeast region. ⑷Long-term use of coating: The anti-corrosion effect of metallic paint can be better than that of conventional paint after sandblasting, and it can be used for a longer time. ⑸Environmental protection and safety: The noise impact of compressors and sandblasting machines and sandblasting dust pollution are avoided on site. It can be constructed on fire and explosion-proof sites in the petrochemical industry and can be directly painted, which is efficient and fast. ⑹Reduce project investment: The anti-corrosion coating has a long service life and the one-time investment can be reduced by more than 50%. 3. Construction process The following pictures show the condition of the painted metal surface, the construction process and the application of two coats of paint.