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Krytox™ 240AA Grease

Low viscosity PFPE based grease thickened with high quality PTFE.


2oz Tube



Product Overview

Krytox™ 240AA is a white buttery grease with all of the same properties as the 143 series base oils. This grease is pure white fluorinated synthetic material, which is nonreactive, nonflammable, safe in chemical and oxygen service, and are long-lasting.

Product Specifications

Viscosity (cSt):
@20°C (68°F): 88
@ 38°C (100°F): 35
@ 99°C (210°F): 5.4
@ 204°C (400°F): 1.3
Vapor Pressure of Base Oil:
@ 38°C (100°F): 1 x 10 e -4
@ 260°C (500°F): 0.8
Volatility of Base Oil (wt% loss in 22 hr.):
@ 149°C (300°F): 15
Pour Point of Base Oil: -50°C (-60°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): 1.91 g/mL
Oil Separation (wt% loss in 30 hours):
@ 99°C (210°F): 5
@ 204°C (400°F): 20
Estimated Useful Range: -51°C to 177°C (-60°F to 350°F)
Primary Chemistry: PFPE Grease

Features & Benefits

Low viscosity
Precise performance
Low outgassing


Seals, O-rings, gaskets, low temperature bearings

Related Products

Krytox™ Greases

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.

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