Intumescent coatings for hydrocarbon fires have been on the market since 1970-2019;s and have gained significant attention in recent years due to their ability to efficiently provide passive fire protection for steel structures. With oil and gas exploration moving towards arctic areas, there is a demand for intumescent coatings which can resist large temperature fluctuations during the service life without cracking. Prior acceptance within the industry of hairline cracking in such coatings is no longer acceptable. Consequently, there is a need for intumescent coatings which can withstand the severity of the service conditions without cracking while providing excellent protection in the event of fire. In the coatings industry, T-bar test is frequently used to analyze the toughness of coatings but due to its empirical nature it cannot provide information about the role of chemical structure of the coating in passing/failing the test. Therefore, by employing dynamic mechanical analysis (DMA), universal testing machine (UTM) and T-bar testing, it has been shown in this work that there is a correlation between the cracking resistance of intumescent coatings measured via T-bar test and the DMA results.