Official DuPont/MOLYKOTE application
assembly and running-in
Evaluate this product for assembly and running-in against the actual material, component, process and operating conditions before standardization.
Products
MOLYKOTE® U-N Paste
MOLYKOTE® U-N Paste is a lubricating and assembly paste. The official Product record identifies this grade for assembly and running-in, chains and conveyors, plain bearings, bushings and sleeves. Key identifying data includes the technology Polyalkylene Glycol (PAG); a listed temperature range from -40°C to 400°C. Selection should be based on the material pair, motion, load, speed, temperature and environment of the actual assembly.
Primary function
What is this product used for?
MOLYKOTE® U-N Paste is a lubricating and assembly paste. The official Product record identifies this grade for assembly and running-in, chains and conveyors, plain bearings, bushings and sleeves. Key identifying data includes the technology Polyalkylene Glycol (PAG); a listed temperature range from -40°C to 400°C. Selection should be based on the material pair, motion, load, speed, temperature and environment of the actual assembly.
Verified applications
Suitable use contexts
chains and conveyors
Evaluate this product for chains and conveyors against the actual material, component, process and operating conditions before standardization.
Plain bearings, bushings and sleeves
Review the bearing type, shaft and bushing materials, load, speed and lubrication regime.
Lubrication of plastic components
Confirm the exact plastic grade, mating material and temperature before testing.
rolling bearings
Evaluate this product for rolling bearings against the actual material, component, process and operating conditions before standardization.
Evaluation basis
Why evaluate this product?
Technology: Polyalkylene Glycol (PAG).
Solid lubricant: MoS2, white solids.
Upper temperature limit (°C): 400.
Before selection
Selection and operating conditions
Contacting material pair
Confirm contacting material pair against the product-specific documentation and the actual application before selection.
Operating temperature
Confirm operating temperature against the product-specific documentation and the actual application before selection.
TDS, SDS and practical testing
Review the correct product TDS and SDS, check equipment requirements and evaluate the material under actual conditions before use.
Confirm the material pair, motion, load, speed, temperature, environment and lubricant application method. Review the correct TDS and SDS and test under actual application conditions before approval.
Verified source data
Key technical data
Technical characteristics
| Metric | Value |
|---|---|
| Lower temperature limit (°C) | -40 |
| Color | Black |
| NLGI grade | 2 |
| Thickener | Lithium |
Key safety and use information
| Metric | Value |
|---|---|
| Signal word | No signal word according to the source documentation |
| Physical state | paste |
| Odour | slight |
| Flash point | closed cup >230 °C ( 446 °F) |
| Relative density | 1.70 |
This information is summarized from manufacturer technical and safety documentation for initial evaluation and does not replace confirmation under actual application conditions.
Product group and brand
Lubricating and Assembly Pastes
Lubricating and Assembly Pastes organizes verified products and supporting technical records for selection in the relevant manufacturing context.
MOLYKOTE is a DuPont brand of technical lubrication materials.
6 Product Groups
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