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    Home > Coatings News > Paints and Coatings Market > How to choose anti-corrosion coatings and anti-corrosion coating construction precautions

    How to choose anti-corrosion coatings and anti-corrosion coating construction precautions

    • Last Update: 2020-12-19
    • Source: Internet
    • Author: User
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    The anti-corrosion coating of metal can effectively protect the outer wall of metal coating from corrosion, which greatly extends the service life of metal material. Therefore, more and more enterprises, especially the petrochemical industry attaches great importance to the application of metal anti-corrosion coatings, how to better choose anti-corrosion coatings, but also need careful choice, especially the different operating conditions need to choose different anti-corrosion functional coatings.
    Pre-treatment before corrosion:
    before the metal anti-corrosion coating, the substation surface must be pre-treated, which is a very important part of anti-corrosion coating, if the surface treatment is not properly, will directly affect the coating on the substation adhesion, coating quality and the protection of the substation performance, coating life, etc., the quality of the surface treatment is a key factor affecting the quality of the coating
    C.
    . In addition to different operating conditions to choose anti-corrosion coatings, application effects, can not ignore the surface treatment requirements, some are not willing to spend money on surface treatment, spend energy, so that the anti-corrosion protection layer life is bound to be greatly shortened.
    Attaches importance to the supporting use of anti-corrosion coatings:
    due to the different performance of anti-corrosion coatings, in different environmental media, coating characteristics, construction conditions and anti-corrosion design years, should make different choices, out of a single anti-corrosion coating sometimes on the protection of the entire metal has limitations, should be used as a system to choose anti-corrosion coatings, that is, matching. The supporting factors and the properties of the coating, corrosion conditions, coating curing conditions, surface treatment requirements, coating thickness, coating method, anti-corrosion design years, technical and economic indicators have a direct relationship.
    Pay attention to the unit price of paint, despise the comprehensive cost:
    constitutes a lot of anti-corrosion construction anti-corrosion paint cost factors, summarized as: design film thickness, paint performance indicators, paint loss, construction methods. Some users often only pay attention to the unit price of paint, do not calculate the comprehensive cost, the use of small factory production of low-cost anti-corrosion paint, poor quality, the total cost is not low, this kind of phenomenon is very common. Pay attention to short-term investment, despise long-term costs: when the anti-corrosion coating system is selected, should be technical and economic comparison, different projects to use different anti-corrosion life settings, avoid the use of short life systems, these systems seem to have a small initial investment, but high maintenance costs, due to the complexity of maintenance, many projects in the cost of follow-up maintenance is even higher than the initial investment. After maintenance of anti-corrosion life is usually not as good as when the new anti-corrosion long-term anti-corrosion coating system to the effect, in order to ensure long-term effectiveness of anti-corrosion, fully conditional selection of anti-corrosion years longer coating system, reduce the later "repair and repair", to avoid the later because anti-corrosion is not in place, affect normal use, increase maintenance input.
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