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Degradation or failure of refractory linings can lead to exposure of the pipe’s surface to temperatures above its design limits. Sometimes, it may even be desirable to heat the contents of the pipe externally. These hot spots can weaken the pipe material, potentially leading to deformation or failure. HTP-100 high-emissivity coating mitigates these issues by promoting even heat distribution. The high emissivity spreads heat uniformly across the coated surface, reducing the risk of localized overheating and helps maintain the structural integrity of the pipes. The images to the right show HTP-100 spreading heat from a 1650 F propane torch test. |
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The above images demonstrate how the heat from the same torch is spread across a large stainless steel structure. Each ring represents an isotherm measured via pyrometer (on the uncoated, small amounts of high-emissivity paint were applied to enable IR pyrometry).
On the coated area, the 350C ring is about the same surface area as the 200C ring on the uncoated, demonstrating effective heat spreading from the high emissivity coating.
