Krytox 240AB

Krytox 240AB is a white buttery grease formulated clear, colorless, fluorinated synthetic oils that are nonreactive, nonflammable, safe in chemical and oxygen service, and are long-lasting. Krytox 240AB also meets MIL-PRF-27617 Type II and NATO G-398

Krytox 240AB is a MIL PRF-27617 TYPE II greases. It is also NSF H-1 Rated for incidental food contact. Viscosity @ 20°C is 240 cSt and Viscosity @ 38°C is 86 cSt. The 240AB is ideal in -40 to 232°C environments

Krytox 240 AB grease is based on perfluoropolyether (PFPE) oils. These synthetic fluorinated lubricants are used in extreme conditions such as continuous high temperatures up to 300 °C (572 °F) and higher temperatures for shorter periods, depending on product grade limits. Chemically inert and safe for use around hazardous chemicals, these lubricants are non-flammable and are safe for use in oxygen service. Krytox oils and greases are silicone free and do not damage plastics or elastomers or cause corrosion to metals. They are commonly used as lubricants in aerospace, automotive, industrial and semiconductor applications as well as solving many other routine lubrication problems. Krytox greases are the original products that this military specification was written for and have been certified continuously since the specification was originally written. This is the latest data the recertification that is required every five years. Krytox greases are standard as NLGI Grade 2 penetration. If the 240 AZ is ordered to meet MIL-SPEC requirements, it must be ordered as NLGI Grade 1 to meet the specification.

Applications for Krytox 240AB lubricants are generally of a critical nature with temperatures in all industries reaching extremes for conventional lubricants. They are expected to be durable in the most aggressive environments and are now often considered an integral part of the design. Where failure of components is not an option, whether because of durability, warranty, safety, loss of productivity or down time, Krytox is the lubricant of choice in a wide range of industries and applications.

Technical data Krytox 240AB

Viscosity (cSt):
@ 20 ° C (68 ° F): 240
@ 38 ° C (100 ° F): 86
@ 99 ° C (210 ° F): 10.5
@ 204 ° C (400 ° F): 2.1
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 hr.):
@ 149 ° C (300 ° F): 1.9
@ 204 ° C (400 ° F): 17.3
@ 260 ° C (500 ° F): 76.2
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 hr
Liquid Oxygen Impact (ASTM D2512, NASA MSFC 106B): Pass
Grease Density (at 25 ° C / 77 ° F): 1.92 g / mL
Oil Separation (wt% loss in 30 hours):
@ 99 ° C (210 ° F): 4
@ 204 ° C (400 ° F): 12
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 hr min at 10,000 rpm, 204 ° C): Stopped at 1,320 hr
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 microns: 0
Resistance to Aqueous Solution:
Distilled Water: Pass
50/50 Distilled Water / Ethanol: Pass
Film Stability and Corrosion on Steel: Pass
Primary Chemistry: PFPE

Features & Benefits Krytox 240 AB

• Meets MIL-PRF-27617 Type II
• Meets NATO G-398
• Low to medium viscosity
• Low out-gassing
• Non-flammable
• Non-Reactive
• Broad temperature performance
• NSF H-1 food grade

Applications Krytox 240 AB

• Bearings
• Seals
• Valves
• Oxygen Devices
• O-Rings
• Threads

Where to buy Krytox 240AB?

Hicotech Vietnam Co., Ltd is the distribution representative of Chemours in Vietnam.

Krytox 240 AB distributed by Hicotech origin: USA 100%

Krytox 240AB have different packages such as:ox 0.5kg, 1kg; 5kg, 7kg, 20kg pail.