DEVELOPMENT TESTING OF NEW GENERATION HIGH TEMPERATURE CORROSION RESISTANT COATINGS

摘要

Protection of steel exposed to high temperature areas, both atmospheric and insulated, provides some of the most demanding situations faced by coatings. Systems applied in these areas are required to give not only resistance to high operating temperatures (which are often cyclic) but also to provide good corrosion protection. Despite this, the Protective Coatings industry still lacks a recognized test protocol for the evaluation of high temperature coating systems prior to field use. This paper describes the problems faced in the development of a “thick film” high temperature anti-corrosive coating for use up to 400oC, and outlines the properties and performance results of these new generation high temperature coatings in comparison to traditional coating systems. In addition, the development of internal test methods used to try and mimic “on site” situations within the laboratory are also discussed.