Krytox® High Vacuum Grease

Performs DePenDably — no matter What ConDitions your system oPerates unDer
Low pressures. Extremely high or low temperatures. Hostile 
environments. Whatever special needs your system might have, 
DuPont™ Krytox® low vapor pressure (LVP) high-vacuum grease 
works—safely, reliably, and cost-effectively.
Krytox® LVP high-vacuum grease performs over extremes of 
temperature and pressure that hydrocarbon, silicone, and 
chlorofluorocarbon greases can’t match. From –15 to 300 °C 
(0–570 °F), at vapor pressures as low as 10–13 mmHg, and in 
even the most chemically severe environments, Krytox® LVP 
grease gives dependable, proven performance.
Additionally, Krytox® LVP high-vacuum grease is nonflammable, 
insoluble, and chemically inert. It is also an excellent lubricant 
and sealant. And Krytox® LVP grease offers all these features 
at a price that is less expensive than many vacuum rated 
hydrocarbon, silicone, and chlorofluorocarbon greases.
Krytox® LVP high-vacuum grease is used as a sealant or 
lubricant in vacuum systems. Chemically inert and offering 
superior lubrication properties, Krytox® LVP grease combines 
the extremely low vapor pressure of Krytox® fluorinated oil, 
which is based on the most stable type of perfluoroalkylpolyether available, with a fluorocarbon thickener. Thus, Krytox®
LVP grease will not explode, ignite, decompose, react to form 
gummy or solid deposits, or act as fuel for fires. Krytox® grease 
retains its lubricating ability at temperature extremes ranging 
from –15 to 300 °C (0–570 °F) and offers complete oxidation 
resistance. All these features add up to lower wear and longer 
life for equipment and components—so important when access 
for component repair or replacement is difficult or impossible.
Krytox® fluorinated grease was first used as a highly reliable, 
low-friction lubricant in aerospace projects, such as the Lunar 
Rover’s traction motors. It was in this and other similar critical 
applications that Krytox® lubricants earned a reputation for 
superior performance.
Today, DuPont™ Krytox® products are proven performers that 
are setting the industry standard for safety, reliability, and costeffectiveness.
Grease typical Properties
NLGI Consistency Grade 2 penetration
Vapor Pressure
Torr at 20 °C (68 °F) –1.0 x 10–13
Torr at 200 °C (392 °F) –1.0 x 10–5
kPa at 20 °C (68 °F) –1.0 x 10–14
kPa at 200 °C (392 °F) –1.0 x 10–6
Evaporation Loss
4 x 10–6 torr at 150 °C (302 °F)
(30 min) wt% 0.1
(60 min) wt% 0.2
(120 min) wt% 0.2
Evaporation Loss
22 hr at 200 °C (392 °F) <0.3%
Density, 25 °C (77 °F), g/cc 1.94
base oil typical Properties
Average Molecular Weight 9500
Kinematic Viscosity, cSt
40 °C (104 °F) 740
100 °C (212 °F) 64.5
200 °C (392 °F) 8.8
Pour Point –15 °C (5 °F)
This table gives typical properties based on historical production 
performance. DuPont does not make any express or implied 
warranty that this product will continue to have these typical 
properties.