Oil, solvent and chemical resistance
Compared with methyl vinyl silicone rubber, fluorine silicone rubber has excellent oil resistance, solvent resistance and chemical resistance. Even compared with fluorine rubber, oil resistance and solvent resistance are good. In the same medium, temperature, time after dipping showed excellent durability, it can be said that fluorosilicone rubber is an elastic body resistant to non-polar media at -68℃ ~ 232℃. The resistance of fluorine silicone rubber to methanol containing gasoline is also relatively good, even in the gasoline/methanol mixed system, the hardness, tensile strength, volume changes of its vulcanized rubber are very small, after 500h long time impregnation test, the physical properties are almost unchanged.

Heat resistance
The high-temperature decomposition of fluorine silicone rubber is the same as that of silicone rubber, that is, side chain oxidation, main chain fracture, side chain thermal decomposition and causing various composite reactions. Since the decomposition products can also cause the main chain to break, the heat resistance is usually worse than that of silicone rubber, and oxidation aging has begun at a temperature of 200 ° C. However, by adding a small amount of heat stabilizer such as iron, titanium, rare earth oxides, it can be significantly improved, and it has sufficient heat resistance even at 250℃ high temperature. The effect of temperature on fluorosilicone rubber is larger than that of silicone rubber, but smaller than that of fluororubber. The service life of fluorine silicone rubber at 150℃×2000h, 175℃×5000h, 200℃×4000h has been studied abroad, and the result is second only to methyl vinyl silicone rubber.

Methyl vinyl silicone Gum, plz check MY 110