Three Layer Epoxy/Polyethylene Side Extruded Coatings for Pipe for High Temperature Application

The author will focus on the properties of three layer epoxy/ polyethylene coating for pipe, based on the experience developed in the lab, coating plant and in the field. The demands of the respective Canadian and other international standards will be looked at with the purpose to evaluate respective merits of various specifications. Special attention will be paid to the properties of the coating involving pipelines operating at elevated temperature, especially running through permanently wet areas, such as permafrost. Lab results will be correlated with the real life experience. Three layer Epoxy/ Polyethylene coatings will be compared to other commonly used coatings in the industry with the object to assess respective benefits and projected longevity versus cost.