Krytox™ XHT-EP299 Grease is a high-performance extreme-pressure lubricant specially formulated for high-temperature applications (up to 316°C) that need both high load-carrying capacity and anticorrosion protection.
Krytox™ XHT-EP299 Grease is a high-performance extreme-pressure grease formulated with perfluoropolyether (PFPE) combined with polytetrafluoroethylene (PTFE) thickener and EP additives. The EP additives in Krytox™ XHT-EP299 provide additional protection by forming a barrier that offers antifriction and anti-wear protection for metal surfaces.
Krytox™ XHT-EP299 provides excellent physical stability and resistance to chemicals, oxygen, and more, making this grease suitable for use in high-speed, high-load uses, such as bearing and gears. It is compatible with most materials and is commonly used in the aerospace, automotive, and industrial industries while ensuring smooth operation and equipment protection. Typical uses include conveyor chains subjected to moist conditions or frequent temperature cycling that could allow condensation and rusting to occur.
Krytox™ XHT-EP299 grease is designed to operate at temperatures ranging from −5°C to 300°C, with peak temperatures up to 316°C for short periods. It has excellent thermal stability and does not break down or oxidize, even at high temperatures.
Krytox™ XHT-EP299 Grease has a viscosity of 3,500 cSt at 20°C.
ISO Grade: 1000
Estimated useful range: −5°C to 300°C
Oil viscosity @ 40°C: 1005
Oil viscosity index: 179
Oil pour point: −5°C
Food grade compatible (H1): No
NLGI Grade: 2
Additives: High pressure and anticorrosion
Primary Chemistry: PFPE (Perfluoropolyether)
Anticorrosion
Contains extreme-pressure additives
Excellent temperature profile
Improves load-carrying capacity
Wear prevention
Nonflammable
Chemically inert
Insoluble to most solvents except highly fluorinated fluids
Excellent oxidative stability
Chemical resistance
Excellent compatibility with plastics, elastomers, and metals
Low volatility and vapor pressure
Inadequate high-load grease capability
Inferior surface protection and lubrication at extreme pressures Damage from extreme temperatures, corrosion, and wear
High maintenance costs
Krytox™ XHT-EP299 Grease is a best choice for wet or temperature-variable conditions that allow for condensation, leading to rusting.
Demanding extreme-pressure applications.
Suitable in vacuum and low-pressure environments.
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