Krytox™ NRT Series

Lubricants for Reactive Gas Services, Krytox™ NRT oils and greases have been specifically developed for reactive gas applications. The NRT series is a part of the Chemours™ family of Krytox™ offerings. Krytox™ Perfluoropolyether (PFPE) oils are based on poly(hexafluoropropylene oxide), the most thermally stable of all PFPE oils. These oils are inert in oxygen and cannot burn or support combustion.

Krytox™ oils are differentiated by viscosity or vapor pressure performance, but these factors do not affect the oxygen stability of the oil. The greases in the NRT series have been specially formulated for reactive gas service. With base oil, the NRT greases have special thickeners and additives for use with reactive gas or chemical applications. Several of the NRT greases are thickened with polytetrafluoroethylene (PTFE) thickener. Because oil and the PTFE thickener are fully fluorinated, they will not oxidize under extreme thermal conditions. The NRT series also includes greases containing inorganic thickeners, especially useful for high pressure oxygen applications.

All Krytox™ NRT oils and greases have been tested by West German Federal Institute for Materials Testing (BAM).

They have been used in oxygen and reactive gas service for decades.

Krytox™ lubricants have been independently tested by organizations including BOC, Air Liquide, NASA, General Dynamics, and Praxair, and proven acceptable for oxygen and other reactive chemical compatibility.

Krytox™ NRT BAM Rating, <60°C

Krytox NRT Rating

NRT 8900 is for use in cold to ambient conditions. Typical applications include: valves and seal lubricant for o-rings.

NRT 8904 and 8906 offer a wide range of temperature conditions. Typical applications include: valves, regulators, seals, and pump and motor bearings.

NRT 8906A provides rust protection at ambient temperatures, corrosion protection at high temperatures and anti-wear protection. It is designed for bearing applications where anti-corrosion protection is required.

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To learn more about our latest formulations, please contact our Technical Service Department.USA:1.800.992.2424 Canada:1.800.323.4621