Main Types of Anti-corrosion Coating Technology

As we all know, pipelines that transport oil, gas, chemicals and petroleum products are of crucial significance to the country economy. Therefore, the performance and maintenance of the pipelines are vital in the process. However, buried pipelines are easy to subject to corrosion attack if it is exposed to a wet environment. Pipeline corrosion refers to the deterioration of the pipes due to its interaction with the surrounding environment. It negatively affects the integrity and longevity of the pipelines. Thus, anti corrosion pipelineprotection is the top issue to consider in oil and gas industry. One of the best ways to control pipeline corrosion is anti-corrosion coating. Coating is a method to isolate pipelines from corrosion attack. Corrosion can be greatly minimized by selecting the right coating.

Main Types of Anti-corrosion Coating Technology
Three-layer PE coating enjoys more popularity in oil and gas pipeline industries, especially in onshore applications. The standard top layer for 3LPP is high-density polyethylene (HDPE). Compared to lower density products, HDPE guarantees better combinations of properties, higher toughness and greater impermeability to both water and oxygen. The integral three-layer PE coating can ensure strong corrosion resistance, long-term operation at a relatively low cost.

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