A well-coated structure is defined as what percentage or better?

A well-coated structure is defined as having 99% or better coating integrity. This high percentage indicates that a very small amount of the underlying substrate is exposed, meaning that the protective coating is very effective at preventing corrosive elements from contacting the surface of the structure.

In cathodic protection, ensuring that the coating is intact to a high degree is crucial because a compromised coating can lead to increased corrosion rates and potential failure of the structure over time. The definition of a "well-coated" structure emphasizes the importance of maintaining a nearly complete barrier against corrosion, aligning with the standards expected in the industry for protective measures. Achieving this level of coating integrity is fundamental for ensuring long-term durability and reliability in various applications, including pipelines, tanks, and other metal structures susceptible to corrosion.