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Krytox™ NRT 8990 is a nonreactive, NLGI Grade 1 synthetic grease for liquid oxygen and reactive gas servicing in temperatures between −103°F and 302°F. Its base oil viscosity is 15 cSt at 40°C.
Krytox™ NRT 8990 is a linear PFPE-based grease technology that exhibits extremely low volatility characteristics that allow for an incredibly long lubrication lifespan. Krytox™ NRT 8990 inherently has a very high viscosity index for effective lubrication over a broad temperature range.
Krytox™ NRT 8990 is incredibly well suited for the demanding requirements in the liquid oxygen service industry and other applications exposed to harsh conditions and reactive chemicals. Krytox™ NRT 8990 is engineered with patented additives to enhance corrosion, rust, and wear protection.
Product type: Synthetic grease, nonreactive
NLGI Grade: 1
Thickener: PTFE
Estimated temperature range: −75°C to 150°C (−103°F to 302°F)
Oil density, g/mL: 1.9
Oil viscosity, kinematic cSt (ASTM D445):
@ 40°C: 15
@ 100°C: 3.7
Primary Chemistry: Perfluoropolyether (PFPE)
Superior film formation
Excellent resistance to water washout
Completely nonflammable
Nonreactive/Inert chemistry
Oxygen safe
Robust thermal stability (−51°C to 121°C)
NLGI Grade 1
Reduce byproduct formation from reactive grease technologies
Inefficient lubrication over wide temperature ranges (poor viscosity index)
Excessive noise generation from metal friction
High levels of corrosion or rust
Krytox™ NRT 8990 is a linear PFPE grease that is incredibly well suited for reactive gas servicing applications and equipment, including liquid oxygen and chlorine .
For questions or additional information regarding the Krytox™ series of performance lubricants, please reach out to your ChemPoint representative.
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ChemPoint will not under any circumstances release personal user information to individuals or companies. All information collection is solely used to support ChemPoint customers service communications. Read our Privacy Notice.
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