A game-changing solution
Published by Sara Simper,
Mario Moreno P.Eng., Seal for Life Industries, Canada, discusses revolutionising pipeline field joint coating with high flexibility epoxy coatings.
Corrosion prevention for underground structures is essential to ensure their long-term integrity and reliability. A combination of a durable coating and cathodic protection (CP) is necessary for effective corrosion prevention. When focusing on field joint coatings, there are many advantages and disadvantages of the different coating technologies available. We take a look at what those are and introduce a new epoxy formulation that promises extraordinary corrosion protection properties and flexibility.
For optimal corrosion prevention in underground structures, a robust coating combined with CP is the recommended approach. The protection cost comprises both the coating and the CP system.
Since its introduction in 1960, single-layer FBE has demonstrated remarkable effectiveness as a pipeline coating. It currently enjoys widespread use as the preferred pipeline coating in North America and has a strong following worldwide. Its exceptional performance characteristics, as well as its track record of success in underground and undersea applications, make it an ideal choice for line pipe, fittings, and bends.
However, for field joint coatings there are several reasons why liquid epoxies are often preferred over FBE to treat the joints between pipes.
Ease of application
Liquid epoxy is easier to apply than powder FBE epoxy, especially in field conditions. The liquid form allows for easier mixing and application, making it more convenient and efficient for use onsite.
Faster cure time
Liquid epoxy has a faster cure time than powder FBE epoxy. This means that the coating can be applied and cured more quickly, reducing the overall downtime for the pipeline.
Liquid epoxy has better adhesion properties than powder FBE epoxy …
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