Krytox™ 250AC Grease is an extreme pressure grade of Krytox™ 240AC.
Krytox™ 250AC series EP greases are black greases that contain molybdenum disulfide added as an extreme pressure additive for highly loaded gears and bearings.
End Markets: Aerospace & Aviation; Transportation
Premium AAND mid range grease for use in applications that require additional extreme pressure additives.
Related Applications: Bearings; Control Cables; Noise, Vibration, Harshness; Plain Bearings, Bushing & Sleeves; Rubber & Elastomer Lubrication; Slides, Guides, & Tracks; Valves, Packings, Seals & O-Rings
Krytox™ 250AC is made for higher pressure applications where Krytox™ 240AC would see oil-filler separation.
Viscosity @20°C (68°F): 800 cSt
Food Grade Compatible (H1): No
Meets MIL-PRF-27617: Yes
Estimated Useful Range: -34°C to 288°C (-30°F to 550°F)
Grease Density @25°C (77°F): : 1.93 g/ml
Oil Pour Point: -35°C (-30°F)
Primary Chemistry: PFPE
Chemistry: Perfluoropolyether (PFPE)
Krytox™ greases are nontoxic lubricants that maintain their lubricity and viscosity properties to reduce maintenance costs associated with re-lubrication, component failure, and downtime in demanding applications. They are created by thickening synthetic perfluoropolyether-based oil (PFPE) with polytetrafluoroethylene (PTFE) powder. The PTFE thickener forms a barrier that holds the base oil at friction contact points for long-term lubrication, without requiring complicated oil recirculation systems. Anit-corrosion, High Temperature and High Pressure additives are also provided for specialized applications.