Corrothane XT Used on Flue Stack

Posted On : Wednesday, December 13th, 2017 in Uncategorised

Larsen & Toubro Limited contracted KCPL to apply an internal lining to two new flue stacks at one of its power plants in Khandwa, Madhya Pradesh. Historically, all flue stacks in Indian power plants have been lined using borosilicate glass tiles or a titanium cladding. However, attracted by the significant economies of using a glass flake lining instead, the customer choose it, knowing both the track record of Corrocoat and the reliable service provided by KCPL.

The flues were 6m and 7m high and were coated on the ground. During erection, the joints were coated progressively in position. The contract involved: preparing the surface by abrasive blasting to ISO 8501-1 SA 2½ to achieve a surface profile of 50-75µm followed by the application of 800µm of Corrothane XT in a single coat to ensure corrosion protection from gases at around 240C. Independent tests that included the exposure to 300C for one hour were conducted prior to selecting the coating.

Although this is the first time KCPL had used Corrothane XT to treat flue stacks, the team had no hesitation in recommending it, firm in the knowledge that it has an excellent track record of successful use in similar extremely aggressive environments, worldwide.

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