Tetrafluoroelastomer can be continuously used at 200 ℃, with a maximum operating temperature of 230 ℃. The continuous service life of tetrafluoroelastomer can reach 2 years at 200 ℃, and the service life at 230 ℃ and 260 ℃ can reach 60 and 10 years, respectively. The continuous service life of tetrafluoroelastomer at high temperatures is shorter than that of VitoN-60C, a low compression permanent deformation type 26 fluoroelastomer vulcanized with bisphenol AF, but longer than VitonA-HV, a type 26 fluoroelastomer vulcanized with 3 vulcanizing agents.