What is the purpose of dielectric coatings in underground storage tanks?

The primary purpose of dielectric coatings in underground storage tanks is to isolate external surfaces from the environment. These coatings serve as a protective barrier that prevents corrosive elements in the soil and groundwater from directly contacting the tank's surface. By doing so, they significantly reduce the likelihood of corrosion, which can compromise the tank's structural integrity and lead to leaks or environmental contamination.

Dielectric coatings are specially formulated to resist moisture, chemicals, and other environmental factors that could result in deterioration over time. This protective measure is essential for maintaining the longevity of the tank and ensuring safe storage of substances. Proper installation of these coatings aligns with regulatory requirements for USTs, which aim to protect both the environment and public health.