NACE SP0375-2024

This standard describes the proper application and material characteristics of wax coatings for underground pipeline external corrosion protection. The scope of this standard is to establish minimum requirements to ensure proper application, inspection, and performance of field-applied wax coating systems for field repair, rehabilitation, or girth weld joints on buried, external steel substrates.
Included are guidelines for proper application and inspection to ensure the long-term performance of wax coating systems. The coating systems in the standard can be applied to girth weld joints during the construction of buried pipelines and their appurtenances that are used for conveying liquids or gases.