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I thought that new heat-resistant coating was just a marketing trick
We had a job on a boiler in a Pittsburgh plant last month where the foreman insisted we use this new spray-on ceramic coating. I figured it was just expensive paint, but the specs said it could handle 500 degrees more than our usual stuff. After the first week of full operation, I checked the treated sections with a thermal camera. The temp difference was real, about 75 degrees cooler on the coated surfaces compared to the old patches. It actually seems to be reducing stress on the surrounding welds. Has anyone else run a long-term test on these newer coatings to see if they hold up?
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keithpalmer6mo ago
Guess @morgan.cameron's scale agrees it's not just fancy paint.
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morgan.cameron6mo ago
We used a similar coating on a refinery heat exchanger in Texas last year. Our thermal readings showed a consistent 80 to 100 degree drop on the coated pipes after six months. The real test was the next shutdown, where we saw way less scale buildup on the treated sections compared to before.
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wyatt_fox683mo ago
Between those thermal drops and the reduced scale, sounds like the coating paid for itself inside a year. Did you notice any change in how often you had to clean the exchanger between shutdowns?
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