Core Application Components: Seals, Valves, and Servo Hydraulic Systems
Fluorosilicone oil, as a high-performance lubricant and sealing medium, is widely used in high-reliability auxiliary components of rocket propulsion systems, including:

High and Low-Pressure Self-Sealing Connectors: Used to connect servo actuators and hydraulic sources, ensuring leak-free oil circuits and preventing air intrusion, maintaining stable system pressure;
Propellant Valve Seals: Under high-pressure, high-frequency opening and closing conditions, fluorosilicone-based sealing materials effectively resist propellant erosion and thermal cycling fatigue;
Servo Mechanism Bearings and Transmission Components: Performing micro-positioning functions in attitude control systems, fluorosilicone oil provides low-friction, long-life lubrication, ensuring attitude adjustment accuracy;
Pipeline Connectors and O-rings: Achieving chemically inert sealing in propellant delivery paths for liquid oxygen, kerosene, unsymmetrical dimethylhydrazine/nitrogen tetroxide, etc.

Excellent Chemical Compatibility: Resistance to Strong Oxidizing Propellant Environments
The strong C–F bonds formed by fluorine atoms in the molecular structure of fluorosilicone oil, in conjunction with the siloxane main chain, allow it to maintain its molecular structure integrity when in contact with strong oxidizing and corrosive propellants such as unsymmetrical dimethylhydrazine (UDMH) and nitrogen tetroxide (NTO), without swelling, degradation, or the formation of corrosive byproducts. Its temperature range is from –80°C to +200°C, and it can withstand 250°C for short periods, meeting the extreme conditions of alternating high temperatures during rocket engine ignition and low temperatures in deep space.