Aerospace-grade fluorosilicone oil exhibits exceptional reliability in extreme temperature environments, maintaining stable performance across a wide temperature range from -60°C to 250°C, making it particularly suitable for demanding applications in aerospace. Let me elaborate on some of its key advantages:

1. Outstanding High and Low Temperature Resistance
Low-temperature performance: Its main chain is a Si-O-Si structure, giving it significantly better low-temperature characteristics than ordinary fluororubber (brittleness temperature approximately -30°C). For example, the LS-2370U model has a brittleness temperature as low as -89°C, ensuring normal operation of hydraulic systems even in extremely cold environments of -55°C.
High-temperature performance: By adding thermal stabilizers such as iron and titanium, the short-term heat resistance limit can reach 250°C, and it can still maintain its performance at 200°C, with volatile content below 5% (after heating at 200°C for 4 hours). Its high-temperature stability is very reliable.

2. Excellent Chemical Stability and Lubricity
It combines the flexibility of organosilicon with the strong chemical resistance of fluorocarbons, resisting corrosion from strong acids, strong bases, oxidizers, and organic solvents.
Its surface tension is approximately 30% lower than traditional silicone oil, providing better hydrophobicity and oleophobicity, reducing media adhesion, and extending material lifespan.
It exhibits good lubricity under extreme pressure conditions, making it suitable for high-temperature lubrication applications such as in aircraft engines.

3. Proven in Practical Applications
In the aerospace industry, it is used as a base component in hydraulic system lubricants, and its low-temperature resistance ensures the normal operation of equipment in extreme environments of -55°C.
Studies show that fluorosilicone rubber (a similar material) has a service life second only to methyl vinyl silicone rubber under conditions such as 150°C × 2000 hours, 175°C × 5000 hours, and 200°C × 4000 hours, demonstrating its proven reliability.
In summary, the reliability of aerospace-grade fluorosilicone oil at extreme temperatures has been verified through practical applications, making it an ideal choice for high-end applications.