The aging resistance of fluorosilicone is excellent, which can be explained from the following aspects:

Weather aging resistance: Fluorosilicone has excellent weather aging resistance. Even after 5 years of exposure, its performance is still very good. This means that fluorosilicone can be used for a long time under various climatic conditions without aging.
Ozone resistance: Ozone is one of the most generated gases when elastomers age, but fluorosilicone rubber has not been found to have cracks or cracks after dynamic or static tests, showing good ozone resistance.
Thermal aging performance: The life of fluorosilicone was evaluated based on the Arrhenius equation through the hot air accelerated aging test method. When the operating temperature is 60°C and the aging performance index is the critical value of 0.6, the life of fluorosilicone is 12 years. This data directly proves the excellent performance of fluorosilicone in thermal aging.
Effect of adding heat stabilizer: Although fluorosilicone begins to oxidize and age at a temperature of 200°C, by adding a small amount of heat stabilizers such as iron, titanium, and rare earth oxides, its heat resistance can be significantly improved, and it has sufficient heat resistance even at a high temperature of 250°C.

In summary, fluorosilicone has excellent aging resistance, which is mainly due to its weather aging resistance, ozone resistance, heat aging resistance, and improved heat resistance after adding heat stabilizers. These characteristics make fluorosilicone widely used in the fields of aviation industry, automobile, chemical industry, electronics, and medical treatment.