Chemours Krytox® XHT-SX PFPE Grease

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Chemours Krytox® XHT-SX PFPE Grease
Categories:	Fluid; Lubricant; Perfluoropolyether (PFPE); PTFE Gellant
Material Notes:	The Krytox® XHT-S and XHT-SX grease series is an extension of the Krytox® GPL 240 series and the Krytox® GPL 20X series, but the Krytox® XHT-S and XHT-SX greases are designed to give higher performance in the 204–302 °C (400–575 °F) ranges. The Krytox® XHT-S and XHT-SX greases should be used below 320 °C (608 °F), where the PTFE thickener could begin to melt. The base oil is an extremely viscous oil that provides good viscosity and lower evaporation at high temperatures. Krytox® XHT-S and XHT-SX greases contain no additives, so they are used where a potential for interaction between process chemicals and grease additives exists. 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	1.99 g/cc @Temperature 0.000 °C	1.99 g/cc @Temperature 32.0 °F
Volatiles	<= 0.75 % @Temperature 204 °C, Time 79200 sec	<= 0.75 % @Temperature 399 °F, Time 22.0 hour
Viscosity Measurement	158	158	Base Oil Viscosity Index
Kinematic Viscosity	2610 cSt @Temperature 20.0 °C	2610 cSt @Temperature 68.0 °F	Base Oil
Kinematic Viscosity at 40°C (104°F)	738 cSt	738 cSt	Base Oil
Kinematic Viscosity at 100°C (212°F)	65 cSt	65 cSt	Base Oil
Vapor Pressure	<= 4.00e-17 bar @Temperature 20.0 °C	<= 3.00e-14 torr @Temperature 68.0 °F
	<= 1.33e-12 bar @Temperature 100 °C	<= 1.00e-9 torr @Temperature 212 °F
	<= 2.67e-9 bar @Temperature 200 °C	<= 0.00000200 torr @Temperature 392 °F

Thermal Properties	Metric	English	Comments
Maximum Service Temperature, Air	300 °C	572 °F
Minimum Service Temperature, Air	<= -10.0 °C	<= 14.0 °F
Pour Point	<= -15.0 °C	<= 5.00 °F	Base Oil

Descriptive Properties
Appearance	White, creamy consistency
Food Contact Approval	NSF H-1

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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WDUPJ920 / 162454

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