Performance Lubricants
NRT Series Delivers Safe Operations in Reactive Gas Service

Product Information
The Problem
Oxygen and other reactive chemicals, such as chlorine,fluorine, and bromine, react with conventional lubrication
technologies that use mineral oils or synthetics. This
increases the potential for explosion, fire, deterioration oflubricants, and equipment failure. This chemical reaction withstandard lubricants can result in:• Grades of Krytox™ oil and grease available for every oxygenand compressed gas lubrication requirement• Robust, soluble, anti-wear/anti-corrosion performance• No auto-ignition at temperatures up to 482 °C (900 °F) inoxygen• No ignition at pressures up to 350 bar• Accelerated decomposition of hydrocarbon lubricants

Demonstrated Results• Bearing failure, due to tars and varnishes

Krytox™ technology provides state-of-the-art performance formechanical systems under harsh conditions. From gearboxes,bearings, and chains to seals, actuators, valves, and more,
every day Krytox™ serves the specialized needs of:• Reaction with additives, leading to degradation andreduced lubricant life
• More frequent lubrication• Need for explosion-proof barriers and nitrogen purge tokeep non-compatible lubricants below explosive limits• Pulp and paper mills, and converting plants• Automotive components• Costly, cumbersome equipment with interlocks thatcan fail• Military and commercial aircraft• Risk of compression auto-ignition when standard
lubricants make contact with an oxygen surge• Power plants• Lubrication system failure from oxidation, harsh chemicalor solvent attack, flammability, and volatilization of the oilbase of standard lubricants• Oxygen, chlorine, and reactive gas equipment andcomponents

The Solution
Krytox™ NRT oils and greases are designed specifically forcritical oxygen service equipment, where failure is not anoption. With more than 40 years of experience, Chemours
offers lubricants that meet the demanding needs of oxygen
and reactive gas applications. Krytox™ technology delivers:• Safety in use with oxygen and other chemicals, including
fluorine, chlorine, bromine, and HF• Nonflammability that may allow elimination of auxiliary
systems to prevent fire and explosion• Extended equipment life

• Chemical plants• Turbine generators

Krytox™ lubricants have been independently tested byorganizations, such as BOC, Air Liquide, BAM, NASA, General
Dynamics, and Praxair, and proven acceptable for oxygen andother reactive chemical compatibility.

Improve the Safety and Performance of Your
Oxygen System Now
Krytox™ NRT series oils and greases may offer the ideal
solution to improve the safety and reduce the complexity of
lubricating your oxygen and reactive chemical equipment. The
use of Krytox™ lubricants can provide safe operation for all
mechanical components.

Performance Lubricants

Krytox™

Krytox™ NRT Series Lubricants for Oxygen and Reactive Chemistry Compatibility
Application

Lubricant Grade

Optimal Temperature Range

ISO Viscosity

Properties

Krytox™ NRT 8904

–51–179 °C (–60–354 °F)

60

Krytox™ NRT 8906

–36–260 °C (–33–500 °F)

240

Safe in all reactive gases, including oxygen, chlorine, fluorine,bromine. Won’t react with acids or bases. Compatible with sealand O-ring materials.

Krytox™ NRT 8908

–40–180 °C (–40–356 °F)

46

Safe for use in extreme high pressure applications. 350 bar BAM
rating.

Krytox™ NRT PLSS

–36–260 °C (–33–500 °F)

240

NSF H1 approved.

Krytox™ NRT 8904

–51–179 °C (–60–354 °F)

60

Safe for use with reactive gases. Won’t wash out. Compatible
with seal and O-ring materials.

Krytox™ NRT 8906A

0–200 °C (32–392 °F)

240

Safe for use with common acids, bases, solvents, and reactivegases. Won’t wash out from water, steam, or solvents.
Compatible with seals and O-rings.

Krytox™ NRT 8990

–75–150 °C (–103–302 °F)

15Linear PFPE grease with high viscosity index to provide effective
lubrication over a wider temperature range, making it a great
choice for liquid oxygen service.

Krytox™ NRT 8950100–325 °C (212–617 °F)

500

Extreme high temperature grease. Safe for use with commonacids, bases, solvents, and reactive gases. 180 bar BAM rating.

Krytox™ NRT 8950

–15–325 °C (5–617 °F)

500

Extreme high temperature grease. 180 bar BAM rating.

Krytox™ NRT 8908

–40–180 °C (–40–356 °F)

46

Safe for use in extreme high pressure applications. 350 bar BAMrating.

Krytox™ NRT 8906

–36–260 °C (–33–500 °F)

240

Safe in all reactive gases, including oxygen, chlorine, fluorine,bromine. Won’t react with acids or bases.

Krytox™ NRT 8908

–40–180 °C (–40–356 °F)

46

Safe for use in extreme high pressure applications. 350 bar BAM
rating.

Krytox™ NRT PLSS

–36–260 °C (–33–500 °F)

240

NSF H1 approved.

Compressor Oil

Krytox™ NRT 8805

–40–160 °C (–40–320 °F)

81

Safe for use with common acids, bases, solvents, and reactivegases. Compatible with common seals.

Vacuum Pump Fluid

Krytox™ NRT 8805

–40–160 °C (–40–320 °F)

81

10–7 torr vapor pressure; compatible with all chemicals.

O-Rings

Krytox™ NRT 8906

–36–260 °C (–33–500 °F)

240

Safe in all reactive gases, including oxygen, chlorine, fluorine,bromine. Won’t react with acids or bases. Compatible with sealand O-ring materials.

Valves,Regulators

Pump and MotorBearings

High PressureApplications

Thread Lubricant
and Sealant

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 their own
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 with any useof 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 arecommendation 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 OTHERWISEWITHOUT 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 oroutside of the U.S., call 1-302-773-1000.
© 2020 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 aretrademarks of The Chemours Company.
Replaces: K-15481-4
C-10771 (11/20)