Chemours Krytox™ GPL 577 PFPE Grease

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Chemours Krytox™ GPL 577 PFPE Grease
Categories:	Fluid; Lubricant; Perfluoropolyether (PFPE)
Material Notes:	Krytox™ GPL 577 is formulated with a high-viscosity base oil and special additives. This results in a grease that can withstand extreme conditions of temperature and load. The high viscosity of the base oil combined with the additives yields a product that is able to maintain a good lubricating film in very slow speed or high load applications. The high base oil viscosity also results in a grease that evaporates very slowly under conditions of high vacuum or temperature. Like all standard Krytox™ products, Krytox™ GPL 577 is nonflammable and compatible with oxygen, and will not react with most chemicals. Information provided by Chemours Krytox
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Physical Properties	Metric	English	Comments

Density	1.95 g/cc	0.0704 lb/in³	oil
Volatiles	<= 1.0 % @Treatment Temp. 99.0 °C, Time 79200 sec	<= 1.0 % @Treatment Temp. 210 °F, Time 22.0 hour	D972, modified
Viscosity Measurement	149	149	Viscosity Index
Viscosity Measure	500 cSt @Temperature 40.0 °C	500 cSt @Temperature 104 °F	oil

Mechanical Properties	Metric	English	Comments
Penetration	265 - 295	265 - 295
Oil Separation	<= 1.5 % @Treatment Temp. 99.0 °C, Time 108000 sec	<= 1.5 % @Treatment Temp. 210 °F, Time 30.0 hour	FTMS 791B 321.1

Thermal Properties	Metric	English	Comments
Maximum Service Temperature, Air	300 °C	572 °F
Minimum Service Temperature, Air	35.0 °C	95.0 °F
Pour Point	-25.0 °C	-13.0 °F

Descriptive Properties
Grease 4 Ball Wear Test	0.12		ASTM D4172: 107 °C, 20 kg, 1200 rpm, 60 min. Friction Coefficient (0.003).
	0.6		ASTM D4172: 107 °C, 20 kg, 1200 rpm, 60 min. Wear Scar, mm (0.01).
Mechanical Stability	< 330		100,000 times

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WDUPJ850 / 254038

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