MOLYKOTE YM103
Harmonization Code : 3403.19 | Lubricating Preparations (With 70% or More Petroleum Oils) For Automotive and Other Uses

Main features
- PAO/PTFE Lubrication for Plastic-on-Plastic
- 45 to 150 deg C Service Range
- Automotive Lubrication Applications
Product Description
MOLYKOTE® YM-103 Grease is a yellow, polyalphaolefin-based lubricating grease developed for plastic components and mixed-material friction contacts. The NLGI Grade 1–2 formulation uses a lithium thickener and PTFE solid lubricant and has a base-oil viscosity of 29 cSt at 40°C. It is suitable for plastic-on-plastic, plastic-on-metal, and metal-on-metal components used in automobiles, electrical appliances, precision equipment, and office equipment. The grease provides documented load-carrying and wear resistance, low seepage for cleanliness-sensitive locations, and an operating-temperature range from −45°C to 150°C.
Key features
- Plastic-component lubrication: Developed for plastic parts and mixed plastic-to-metal friction combinations.
- Broad contact compatibility: Suitable for plastic-on-plastic, plastic-on-metal, and metal-on-metal friction parts.
- Load and wear performance: Provides supplier-documented load-carrying capability and wear resistance.
- Low seepage: Supports use in locations where lubricant migration and cleanliness are important considerations.
- Low-temperature capability: Supports operation down to −45°C.
- PAO/PTFE formulation: Combines polyalphaolefin base oil, lithium thickener, and PTFE solid lubricant.
Applications / Suitable for
- Plastic-on-plastic friction components
- Plastic-on-metal friction components
- Metal-on-metal friction components
- Automotive components
- Electrical appliances and office equipment
- Precision equipment requiring low-seepage lubrication
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Thermal Properties
Additional Information
As-supplied / before-processing properties
Supplier-published as-supplied characteristics of MOLYKOTE® YM-103 Grease.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Product type | Lubricating grease | — | Developed for plastic components |
| Base-oil technology | Polyalphaolefin | — | PAO synthetic base oil |
| Thickener | Lithium | — | Supplier-listed composition |
| Solid lubricant | PTFE | — | Supplier-listed composition |
| Color | Yellow | — | As supplied |
| NLGI grade | 1–2 | — | Consistency classification |
| Base-oil viscosity | 29 | cSt | At 40°C |
| Available package size | 16 | kg | Pail |
| Available package size | 180 | kg | Drum |
After-application / in-service properties
Supplier-documented characteristics relevant to the grease during service.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Operating-temperature range | −45 to 150 | °C | Current DuPont product-page range |
| Plastic compatibility | Compatible with most plastics | — | Supplier-documented general compatibility statement |
| Load-carrying capability | Good | — | Qualitative supplier performance statement |
| Wear resistance | Good | — | Qualitative supplier performance statement |
| Seepage characteristic | Low | — | Relevant to cleanliness-sensitive locations |
| Service-life positioning | Long service life | — | Qualitative claim; no universal relubrication interval published |





















