NOK Klüber NOXLUB KF 0921 Wide-Temperature PFPE/PTFE Fluorinated Grease
NOXLUB KF 0921 is a high-performance fully synthetic fluorinated grease from NOK Klüber, based on PFPE perfluoropolyether oil with a PTFE thickener. It is white in appearance and has an NLGI grade of 2. Klüber describes it as a high-temperature, long-term grease with very good low-temperature properties. A major advantage of KF 0921 is its wide service temperature range. It remains suitable for lubrication at temperatures as low as -65°C, while its upper operating temperature reaches 220°C. Its low-temperature torque characteristics make it suitable for small actuators and automotive electrical mechanisms where excessive drive resistance must be avoided. The grease also offers very good resistance to chemicals, solvents and fuels, together with high oxidation stability, good wear resistance and corrosion protection. NOK Klüber additionally states that it can be used with many rubber and plastic materials.
Product Details
Product Features
Wide Service Temperature Range:Suitable for approximately -65°C to 220°C.
Low Torque at Low Temperature:Typical starting torque is about 6 N·cm, with running torque about 2 N·cm at -40°C.
Excellent Media Resistance:Resistant to many chemicals, solvents and fuels.
Good Wear Protection:Helps reduce wear on bearings, sliding parts and other moving components.
Good Corrosion Protection:Helps protect metallic friction pairs against corrosion and rust.
Compatible with Many Rubbers and Plastics:Suitable for many elastomer and plastic materials; compatibility testing is recommended for special materials.
Product Applications
Automotive Electrical Components:Suitable for electronic throttle mechanisms, electric turbo-related components and other temperature-sensitive automotive systems.
Automotive Auxiliary Components:For actuators and auxiliary mechanisms requiring low starting torque.
Rolling & Plain Bearings:Suitable for bearings requiring wide-temperature, low-torque and long-term lubrication.
Sliding Parts & Seals:For sliding surfaces, seals and related friction points in machinery.
Electrical & Electronic Equipment:For mechanisms exposed to temperature fluctuations where low friction and stable lubrication are required.
| Item | NOXLUB KF 0921 |
|---|---|
| Product Type | Wide-Temperature Long-Life Fluorinated Grease |
| Brand | NOK Klüber |
| Model | NOXLUB KF 0921 |
| Base Oil | PFPE / Perfluoropolyether |
| Base Oil Viscosity at 40°C | Approx. 90–93 mm²/s |
| Base Oil Viscosity at 100°C | Approx. 26 mm²/s |
| Thickener | PTFE |
| NLGI Grade | 2 |
| Density | Approx. 1.94–1.95 g/cm³ at 20°C |
| Appearance | White |
| Vapor Pressure | 1.0×10⁻⁸ Pa at 20°C |
| Evaporation Loss | 0.1 wt% at 99°C × 22 h |
| Oil Separation | 3.5 wt% at 100°C × 24 h |
| Oxidation Stability | 0.01 MPa at 99°C × 100 h |
| Low-Temperature Starting Torque | 6 N·cm at -40°C |
| Low-Temperature Running Torque | 2 N·cm at -40°C |
| dmn Value | 50×10⁴ |
| Service Temperature Range | -65°C to 220°C |
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