This fluorosilicone grease is a specialty high‑performance lubricating grease based on fluorosilicone fluid, reinforced with finely dispersed PTFE solid filler and stabilized anti‑oxidant additives. It combines the excellent low‑high‑temperature performance of fluorosilicone base fluid with the low‑friction property of PTFE. The grease resists swelling and degradation induced by many aggressive chemicals, solvents and fuels. It delivers durable lubrication and sealing protection for valve seals
Product DetailsFluorosilicone Grease CAS 9002‑84‑0, Fluorosilicone PTFE Chemical‑Resistant for Valve Seal Extreme Temp FluoropolymerThis fluorosilicone grease is compounded with fluorosilicone base fluid, dedicated thickener, uniformly distributed fine PTFE powder and anti‑oxidant stabilizing additives. The fluorine‑modified silicone molecular structure endows the base fluid with exceptional resistance against hydrocarbon fuels, organic solvents and many corrosive chemical media. The suspended PTFE solid filler creates a low‑friction sliding interface, lowering wear during repeated opening and closing cycles of moving sealing surfaces. This formulation maintains stable consistency across a broad extreme‑temperature operating range without excessive fluid‑like thinning or rigid hardening.
When applied to valve spindle seals, gland packing surfaces and mating fluoropolymer component interfaces, the grease forms a dense, adherent lubricating sealing film. The film fills micro‑gaps on the seal surface to reduce medium leakage. It reduces frictional torque during valve cycling, alleviates abrasion of fluoropolymer sealing elements and prevents stick‑slip movement of valve stems. It maintains sealing and lubricating functionality even under fluctuating thermal conditions.
Under continuous mechanical shearing from frequent valve actuation, the grease demonstrates good shear stability and minimizes oil separation. The anti‑oxidant additives suppress thermal degradation of the fluorosilicone fluid at elevated temperatures, extending service life for static and dynamic sealing points. The formulation features good material compatibility with fluoropolymer elastomers, reducing the risk of seal swelling, softening or premature ageing.
It is suitable for assembly and maintenance greasing of process valves, control valve stem seals, fluoropolymer gaskets and sealing assemblies exposed to chemical fluids. The coating thickness should be precisely controlled. Over‑greasing may cause excess grease extrusion into process media flow paths; insufficient coating results in elevated friction torque, accelerated seal wear and potential leakage across sealing interfaces.
Do not mix this PTFE filled fluorosilicone grease with hydrocarbon grease, ordinary silicone grease or lithium‑based greases. Incompatible blending will break the stable grease matrix, reduce chemical‑resistant performance and degrade high‑temperature sealing characteristics. Store in tightly sealed original containers inside cool, dry indoor warehouse. Avoid prolonged high‑temperature storage to retain chemical‑resistant lubricating and sealing performance for valve seals and fluoropolymer components under extreme‑temperature service.

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