Chemours Krytox® NRT 8990 PFPE Lubricant

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Chemours Krytox® NRT 8990 PFPE Lubricant
Categories:	Fluid; Lubricant; Perfluoropolyether (PFPE); PTFE Gellant
Material Notes:	NRT 8990 is a linear PFPE grease providing low volatility characteristics for longer lubricant life. The base oil has a high viscosity index to provide effective lubrication over a wider temperature range, making it a great choice for liquid oxygen service. NRT 8990 is formulated using a patented soluble anti-corrosion additive that helps reduce noise, rusting, and wear, thus extending grease, bearing, and component life. Chemours was formed from former DuPont performance chemicals businesses, including DuPont Performance Lubricants, in 2015.
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Physical Properties	Metric	English	Comments

Specific Gravity	1.90 g/cc	1.90 g/cc	Oil
Volatiles	<= 8.0 % @Temperature 121 °C, Time 79200 sec	<= 8.0 % @Temperature 250 °F, Time 22.0 hour	Oil Volatility; ASTM D972
Kinematic Viscosity at 40°C (104°F)	15 cSt	15 cSt	Base Oil; ASTM D445
Kinematic Viscosity at 100°C (212°F)	3.7 cSt	3.7 cSt	ASTM D445

Thermal Properties	Metric	English	Comments
Maximum Service Temperature, Air	150 °C	302 °F
Minimum Service Temperature, Air	-75.0 °C	-103 °F

Descriptive Properties
Appearance	White, creamy consistency
Standard NLGI Penetration Grade	1
Thickener	PTFE

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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