The anti-corrosion coating on the outer wall of the coastal petrochemical circulating water pipes failed after less than 1 year of use; what methods can be used to solve this problem?
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The image below shows that the anti-corrosion coating on the outer wall of a coastal petrochemical circulating water pipeline lost its effectiveness after less than 1 year of use. The material used is a polyurethane coating; we are looking for good anti-corrosion materials that can address the issue of short service life of this coating.
It is recommended to use epoxy coal tar pitch coatings or glass flake coatings instead; these materials offer better corrosion resistance and adhesion, making them suitable for use in harsh marine environments and enabling an extension of the pipeline’s service life. At the same time, considering increasing the thickness of the coating and ensuring quality control over surface treatment and painting during application can help achieve the best protective effect. .
This has nothing to do with the seaside; it’s just that the primer wasn’t applied properly during construction
It looks like the rust removal wasn’t done properly{:9001:}
It should be a problem related to the quality of construction; it shouldn’t rust in such a short time
It’s probably because the pipe wasn’t rusted off before painting it