What is the term for a break or void in a paint coating?

The term for a break or void in a paint coating is referred to as a "holiday." In the context of protective coatings, a holiday indicates an area where the coating is absent or has failed, potentially exposing the underlying substrate to environmental elements and leading to deterioration or corrosion.

The identification of holidays is critical in the inspection process of pressure vessels and other structures, as these voids can compromise the integrity and effectiveness of the protective layer meant to prevent damage from moisture, chemicals, and other potential hazards. Inspectors typically use various methods, such as holiday detectors or electrical testing, to locate these defects during the quality assurance processes.

Understanding this term is essential for professionals involved in coating applications and inspections, ensuring that they can communicate effectively about the condition of the coatings and take appropriate remedial actions when necessary.