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Krytox™ 240AB Grease
Krytox™ 240AB Grease is an NLGI Grade 2, nonflammable, aerospace-grade PFPE grease with a PTFE thickener that meets MIL-PRF-27617 Type II and is NSF H1 certified for incidental food contact.
Krytox™ 240AB grease is a high-performance lubricant formulated from perfluoropolyether (PFPE) that provides exceptional protection, reliability, and longevity in demanding applications. Krytox™ 240AB is a white, buttery grease formulated from clear, colorless, fluorinated synthetic oil that is entirely nonreactive, nonflammable, safe in chemical and oxygen service, and incredibly long lasting.
Krytox™ 240AB provides premium performance that meets MIL-PRF-27617 Type II and NATO G-398 for a range of aerospace industry equipment and applications. Krytox™ 240AB is also NSF H1 certified as safe for incidental food contact.
Vapor pressure of base oil: @ 38°C (100°F): 5 x 10 e −6 @ 260°C (500°F): 3 x 10 e −2
Volatility of base oil (wt% loss in 22 hrs): @ 149°C (300°F): 1.9 @ 204°C (400°F): 17.3 @ 260°C (500°F): 76.2
Oil separation (wt% loss in 30 hrs): @ 99°C (210°F): 4 @ 204°C (400°F): 12
Pour point of base oil: −40°C (−40°F) Texture: Buttery NLGI Grade: 2 Mechanical stability (ASTM D217, 10,000 and 100,000 strokes): No change Oxidation stability @ 99°C (210°F): 0 psig pressure drop after 600 hrs Liquid oxygen impact (ASTM D2512, NASA MSFC 106B): Pass Grease density @ 25°C (77°F): 1.92 g/mL Estimated useful range: −40°C to 232°C (−40°F to 450°F) Qualification reference number: AFPET/PTP 08-012 MIL-SPEC: MIL-PRF-27617 Tyler 2 NATO number: G-398 Change in worked penetration: +3 Corrosion on copper (2b max): 1b High-temperature bearing performance (500 hrs min at 10,000 rpm, 204°C): Stopped at 1,320 hrs Evaporation (ASTM D-2595, %): 10.1 Solubility in Fuel (%): 0.3 Water washout characteristics (%): 0.25 Dirt Count: 75 micron and larger: 0 25–75 micron: 0 Distilled water: Pass 50/50 Distilled water/ethanol: Pass Film stability and corrosion on steel: Pass
Primary Chemistry: PFPE (Perfluoropolyether)
Features & Benefits
Meets MIL-PRF-27617 Type II Meets NATO G-398 Low to medium viscosity Low outgassing Nonflammable Nonreactive Broad temperature performance NSF H1 food grade High-temperature grease
Problems Solved
Flammable, unsafe, or reactive grease solutions Metal component wear and tear (bearings, joints, etc.) Insufficient lubricant protection
Applications
Krytox™ 240AB can be used in a wide range of aerospace and aviation applications, including bearings, control switches, gauges, quick connectors, o-rings, gaskets, and seals.
Krytox™ Specialty Aerospace Performance Lubricants are PFPE based oils & greases that meet or exceed the strict requirements of the Aerospace, Aviation & National Defense industries.
Krytox™ Performance Lubricants provide exceptional performance for o-ring lubrication and protection. Explore their portfolio of tailored products here.
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ChemPoint will not under any circumstances release personal user information to individuals or companies. All information collection is solely used to support ChemPoint customers service communications. Read our Privacy Notice.
Thank you
Thank you for your inquiry and interest in ChemPoint. We will respond to you shortly.
ChemPoint will not under any circumstances release personal user information to individuals or companies. All information collection is solely used to support ChemPoint customers service communications. Read our Privacy Notice.
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