The use of a wet stack requires protective coatings to prevent corrosion of the inner surface of flue gas ducts. The corrosion may arise in result of flue gas cooling below the dew point as well as in presence of hygroscopic and deliquescent salts. Different technologies are used to serve this purpose, such as composite coatings. This paper presents the mechanical and thermal resistance testing of the ARC 982 composite coating. The testing was comprised of:

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assessment of specimen bending at a specific angle in terms of the occurrence of coating exfoliation,

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assessment of the probability of metal exposure due to the impact of tools on the coating,

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assessment of the effect of welding in the area without the composite on the state of the coating.

使用湿烟囱需要保护涂层，以防止烟道气管内表面腐蚀。腐蚀可能是由于烟气冷却到露点以下以及吸湿和潮解盐的存在而引起的。为此目的使用了不同的技术，例如复合涂料。本文介绍了ARC 982复合涂层的机械和热阻测试。测试包括：

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根据涂层剥落的发生情况评估样品在特定角度下的弯曲，

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评估由于工具对涂层的影响而导致金属暴露的可能性，

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评估无复合材料区域的焊接对涂层状态的影响。