Our Czech partner – Corrotech, were approached by a customer in the power generation industry to apply abrasion protection for expander components. An abrasion resistant lining was applied to the internal surfaces of the newly fabricated components, covering a total surface area of approx. 20m2.
Corrotech recommended the use of Corrocoat Polyglass VEF WR. This coating, filled with glassflakes and anti-abrasive fillers, was the ideal choice for this type of project. It provided high levels of corrosion and abrasion protection for the expander components. Polyglass VEF WR is an abrasion resistant glass flake vinyl ester co-polymer.
Oil and grease was removed from the expander components before they were blast cleaned to ISO 8501-1 Sa 2½. Two coats of Polyglass VEF WR were then applied to reach the specified DFT of 1500μm necessary. This provided the required levels of abrasion and corrosion resistance.
Polyglass VEF WR will protect the steel substrate and offer good resistance to abrasion for many years, extending the service life of the components in question. To finish, quality assurance procedures were completed as per an agreed Inspection and Test Plan.