X‌YC UNIFLOR 8921AF‌ PFPE PTFE Grease Chemical Resistant Fluorinated Grease for Aerospace 1KG

    X‌YC UNIFLOR 8921AF‌ 1KG
    XYC UNIFLOR 8921AF is a specialized, high-performance synthetic fluorinated grease designed for aerospace applications, with exceptional thermal resilience from -65℃ to +250℃. It offers strong resistance to aggressive fluids and chemicals while remaining neutral to sensitive components. Its low outgassing properties make it ideal for high-vacuum and sealed environments, preventing contamination and ensuring reliable operation.
    minimum order: 
    1 piece
    Supply Ability: 
    10000piece / Month
    Country of Origin: 
    China
    Stock Time: 
    3Day
    Quantity:
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    X‌YC UNIFLOR 8921AF‌ PFPE PTFE Grease Chemical Resistant Fluorinated Grease for Aerospace 1KG

    Basic Information

    Base Chemistry: Completely fluorinated Perfluoropolyether (PFPE) base oil.
    Thickener: Polytetrafluoroethylene (PTFE).
    Product Type: Heavy-duty synthetic grease (NLGI Grade 2).
    Appearance & Color: Smooth, white, homogeneous grease.
    Characteristics: PFPE PTFE grease, high temperature fluorinated grease, aerospace synthetic lubricant, chemical resistant grease.
    The designation UNIFLOR 8921AF refers to a specialized, high-performance synthetic fluorinated grease. XYC UNIFLOR 8921AF is the grease version built on a similar ultra-wide temperature platform, thickened with PTFE. The"AF"suffix typically indicates an anti-friction or specific additive-enhanced formulation optimized for high-reliability aerospace, defense, or critical industrial components.

    Key Characteristics

    Extreme Thermal Resilience: Maintains structural integrity and resists thermal degradation across a massive thermal window from -65℃ up to +250℃.
    Aggressive Fluid & Chemical Resistance: Highly resistant to aggressive fuels, solvents, concentrated acids, and reactive oxygen environments.
    Low Outgassing / Vapor Pressure: Ideal for high-vacuum and sealed aerospace applications where standard greases would evaporate or contaminate precision sensors.
    Material Neutrality: Safe for use alongside sensitive plastics, elastomers, and reactive metals without causing swelling or chemical breakdown.

    Key Technical Specifications

    Service Temperature Range: -65℃ to +250℃
    Base Oil Viscosity (at 40 C): Approx. 135 to 150 mm2/s (cSt)
    Base Oil Viscosity (at 100 C): Approx. 40 to 45 mm2/s (cSt)
    Viscosity Index: 334 to 340
    Pour Point: -70°C
    Density (at 25 C): Approx. 1.83 to 1.88 g/cm3
    Evaporation Loss: 0.010% to 0.1%

    Applications

    Aerospace Actuators and Controls: Specified for flight-control mechanisms, valves, and instruments subjected to freezing altitudes and high friction.
    Fuel Systems & Chemical Valves: Used where components are in direct or ambient contact with aggressive fuels, oxidizers, or strong chemical vapors.
    High-Vacuum & Cleanroom Bearings: Deployed in environments that demand a grease capable of handling mechanical loads under extreme heat without losing oil components to evaporation.