An external coatingLiquid, liquefiable, or mastic composition that, after application to a surface, is converted into a protective adherent film. The coating serves as a barrier b… material consisting of continuous thin film of polyethyleneOne of the most commonly used plastics, polyethylene in oil and gas is used primarily for fracking water removal, transportation of process water, or movement o… wrapped helically around the pipe. PE Tape coating is typically considered a sub-standard coating and strongly associated with stress corrosion cracking (SCC)A form of corrosion-induced cracking that occurs when a susceptible material is exposed to a corrosive environment and subjected to tensile stresses. SCC can le…, since PE tape coating causes shieldingPreventing the flow of cathodic protection (CP) current from reaching the external pipe surface in a location where the coating is disbonded. of CP current when disbonded.
- Hide NotesNOTE See also SCCA form of corrosion-induced cracking that occurs when a susceptible material is exposed to a corrosive environment and subjected to tensile stresses. SCC can le…, shieldingPreventing the flow of cathodic protection (CP) current from reaching the external pipe surface in a location where the coating is disbonded..