A holiday test is an inspection method used to detect discontinuities in painted/coated surfaces using specialized tools and equipment. These tools, called holiday detectors, are portable devices that are swept across the coated surface. Holiday tests work on the concept of electrical conductivity.
Holiday Testing detects pinholes and voids in protective coatings on pipelines and structures, ensuring complete coverage and preventing corrosion.
Using an electric current, Holiday Testing identifies flaws in coatings, allowing for prompt repairs and maintenance to safeguard material longevity.