Session: Advanced Protective Coating Technology Symposium & Forum (Part I of III)
Classification of Polymeric Coatings for Protection of External Surfaces of Buried and Submerged Pipelines (C2026-00045)
Monday, March 16, 2026
11:00 AM - 11:30 AM Central
Location: 350 DEF
Earn .5 PDH
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Polymeric coatings are the first line of defense in protecting external surface of buried and submerged pipelines, with cathodic protection (CP) as the backup. External surfaces of pipelines have been effectively and efficiently protected from corrosion by the polymeric coating and CP combinations. A variety of coating technologies has been developed over past 100+ years. This paper provides qualitative criteria for classifying various coatings into five types: good coatings, poor coatings, blister-forming coatings, shielding coatings, and incohesive coatings. The data used to develop this classification will be presented so that the users are able to understand merits and demerits of this approach. This paper will also elaborate standardization activities currently underway that will support, and may further refine, this classification. Prominent standardization activities currently underway are development of coating selection guidelines by AMPP 21618 task group, merger of various ASTM cathodic disbondment (CD) test standards under one standard, and coordination of ASTM inter laboratory studies (ILS) to establish the precision of CD tests for various coating types.
