Heat-Flex Hi-Temp 1200Technical Information HEAT FLEX HI TEMP 1200 is the next generation singlecomponent inert multipolymeric matrix coating that outperforms alternatives in combating corrosion under insulation (CUI) and in high heat applications. Resists corrosion under insulation Resists stress corrosion cracking Application surface temperatures from ambient to 500F (260C) Operating surface temperatures cryogenic to 1200F (649C) Self priming, single component No maximum