The high-low temperature and dry-wet alternate runtime environment in the chimney after wet desulfurization is considered as the major reason for anti-corrosion coatings'failure.The existing problems of evaluation method for two key properties(adhesion and heat resistance performance)of the coating were analyzed.Measures such as using adhesion change between dry state and wet state and using the demineralized water soaking/high temperature baking cycling test to evaluate the anti-corrosion coating's ability for resisting the chimney's bad running environment were put forward.The test showed that the new detection method was more close to the actual situation

so it can evaluate the coating's performance accurately.