Thread Content
Given the special operating conditions in tidal flat oil and gas fields, characterized by high salt fog, alternating wet and dry environments, and the coexistence of multiple corrosive media, the fused epoxy powder (FBE) + 3PE triple-polyethylene composite coating represents the optimal choice in terms of comprehensive adaptability. It is also the preferred solution for buried pipeline systems in tidal flat oil and gas fields in China at present. Its core advantages perfectly meet the requirements of tidal flat environments: the underlying fused epoxy powder exhibits extremely strong adhesion, along with excellent corrosion and mechanical impact resistance. It can withstand scratches from hard objects in the complex geological conditions of tidal flats, thereby preventing coating damage and failure ； The outer polyethylene layer boasts excellent water resistance and weather resistance, enabling it to withstand the effects of high salt fog in tidal areas as well as repeated cycles of dryness and wetness over the long term; its designed service life can exceed 30 years ； The construction technology is well-developed, with the entire process now being carried out domestically in China. The accompanying intelligent coating production lines ensure uniform coating thickness and high spraying precision, thereby significantly reducing the difficulty of carrying out on-site repairs. For steel structure applications in the splash zone and tidal range area of tidal flat platforms, a composite coating system that uses thermally sprayed aluminum-zinc metal layers combined with a sealing topcoat is more suitable; this approach enables long-term protection lasting over 18 years, preventing the rapid wear and failure of conventional coatings in such areas.