Petrochemical heating furnace pipelines run under long-term 180–250℃ high temperature, mixed sulfur dioxide flue gas and thermal shock. Conventional ordinary epoxy coating will crack and lose anti-corrosion performance within 1–2 years under high-temperature acid gas environment. FLDC independent developed OM-5 full set high-temperature anti-corrosion coating for furnace outer wall and flue pipelines of refineries and…