AUT 2E45

Performance Lubricants

Grease for Electric Motors

Product Information
Krytox™ greases offer the potential for lubed-for-life
properties in demanding electrical motor service. Krytox™
greases are non-oxidizing, water-resistant, nonflammable,
and chemically inert.

Typical Properties

Krytox greases contain perfluoropolyether (PFPE)
oil and a polytetrafluoroethylene (PTFE) thickener.
The PFPE oil and PTFE thickener will not oxidize andgum up like ordinary synthetic or hydrocarbon-based
greases. Krytox™ greases are recommended by many
major bearing manufacturers for long-life lubrication insevere applications. The superior film-forming capabilityof Krytox™ greases provide a thicker oil layer and reducewear. Krytox™ greases are compatible with metals
and most seal materials, but require removal of all oldlubricants from the motor bearings before application.

Color

White

Base OilPFPE

Base Oil Viscosity, ASTM D 445
cSt at 40 °C (104 °F)
cSt at 100 °C (212 °F)

10012.5

Viscosity Index, ASTM D 2270

119

Thickener

PTFE™

Benefits and Features
Krytox™ greases offer the following benefits and features.
FeatureBenefitsUnsurpassedoxidation
resistance ofbase oil

PFPE will not oxidize and gum up
with age and use. Will not break
down with high temperatures
experienced in electric motors.
Operating temperature range
from –44 to 200 °C (–47 to 392 °F)

Advanced PTFE
thickener

Special high efficiency thickener will
not oxidize or break down with shear

Lubed-for-life
potential

Typically, no need to re-lubricate
bearings during lifetime ofelectric motor

Excellentcorrosion
resistance

Additives offer resistance to corrosion
and rust during storage and in wet
environments

Property

Krytox™ AUT2E45 Grease

NLGI Grade2Anti-Corrosion Additive

Proprietary

Specific Gravity at 0 °C (32 °F)

2.0

Penetration Change after 100,000strokes, ASTM D 217, mm/10

15Bearing Life, hr, ASTM D 3336,
10,000 rpm at 180 °C (356 °F)*
Operating Temperature Range, °C (°F)
Dropping Point, °C (°F)
Oil Separation at 99 °C (210 °F),
ASTM D 6184

25,000+–44 to 200(–47 to 392)
N/A
4% typical

Low Temperature Torque,g·cm at –40 °C (–40 °F), ASTM D 1478
StartingRunning

5,800
1,900

Low Temperature Torque,g·cm at –20 °C (–4 °F), ASTM D 1478
Starting
Running

650
220

Emcor Corrosion, ASTM D 6138

0, 1 (no rust)

Rust Protection, ASTM D 1743

Pass

Copper Corrosion Resistance,
ASTM D 4048

1B max.

Water Washout, ASTM D 1264, %1.5* The ASTM D 3336 at 180 °C (356 °F) test for Krytox™ AUT 2E45 grease was stillrunning when discontinued at 25,036 hr. Actual run time would have been longer.
Note: For application in wide profile bearings (e.g., cylindrical, spherical roller) at
Dn > 70,000 (bearing mean diameter x rpm), please contact your Chemours technicalrepresentative for application assistance.

Krytox™

Performance Lubricants

ASTM D 3336—Grease Life in Ball Bearings—Krytox™
AUT 2E45 Lubricant

Bench Bearing Life Test—ROF+—Krytox™ AUT 2E45
LubricantWeibull Probability Plot—Included lives: L10 L50—Conf. Interval: 90% 2-sided
6204 bearing, 10,000 rpm at 177 °C (351 °F)

10,000 rpm, 20/4 cycle and ~50N radial and axial loads
100,000

99

10,000

Bearings Failed, %Test Duration, hours

25,036

At 25,036 hr, the test wasstopped; grease did not fail.

5560
2076

1,000318552

9590807060
50403020
105311

2100
175

185

195

205

215

225

1234 5Temperature, °C
AUT 2E45

Polyurea #1

Polyurea #2

Lithium Complex

102

234 5103234 5104

Bearings Grease Life, hours
AUT 2E45

Polyurea #1

Polyurea #2

The information set forth herein is furnished free of charge and based on technical data that Chemours believes to be reliable. It is intended for use by persons having technical skill, at theirown discretion and risk. The handling precaution information contained herein is given with the understanding that those using it will satisfy themselves that their particular conditions of use
present no health or safety hazards. Because conditions of product use are outside our control, Chemours makes no warranties, express or implied, and assumes no liability in connection withany use of this information. As with any material, evaluation of any compound under end-use conditions prior to specification is essential. Nothing herein is to be taken as a license to operate
under or a recommendation to infringe any patents.
NO PART OF THIS MATERIAL MAY BE REPRODUCED, STORED IN A RETRIEVAL SYSTEM OR TRANSMITTED IN ANY FORM OR BY ANY MEANS ELECTRONIC, MECHANICAL, PHOTOCOPYING,RECORDING OR OTHERWISE WITHOUT THE PRIOR WRITTEN PERMISSION OF CHEMOURS.

For product information, industry applications, technical assistance, or global distributor contacts, visit krytox.com or within the U.S. and Canada, call 1-844-773-CHEM/2436
or outside of the U.S., call 1-302-773-1000.
© 2015 The Chemours Company FC, LLC. Krytox™ and any associated logos are trademarks or copyrights of The Chemours Company FC, LLC. Chemours™ and the Chemours
Logo are trademarks of The Chemours Company.
Replaces: K-23698-6
C-10071 (7/15)