Coating for the inner wall of vertical tanks
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In the past, conductive coatings were used when designing the inner wall coatings of oil tanks. The relevant regulations have now removed the requirement to use antistatic coatings. During use, the antistatic coating shows poor durability. According to the specifications for preventing ignition caused by static electricity and stray currents, a coating thickness of less than 1 mm is considered as no coating at all. (We understand that it is possible to dissipate static electricity.) When engaging in technical discussions with foreign paint manufacturers, they explained that the concept of anti-static paint does not exist abroad. Anti-static coatings are basically not produced. Can storage tanks be designed without antistatic coatings? Are my understandings correct?
Regarding the internal anti-corrosion treatment for oil pipes, we have used imported polymer coatings; the total thickness of these two layers is around 500μm. As for anti-static measures, I’m not sure either.