MOLYKOTE M-77
Harmonization Code : 3403.19 | Lubricating Preparations (With 70% or More Petroleum Oils) For Automotive and Other Uses
Main features
- Up to 400 deg C Service
- Silicone Carrier Oil
- Selected Metal, Plastic, Rubber, and Elastomer Contacts
Product Description
MOLYKOTE® M-77 Paste is a black-gray solid-lubricant paste based on polyphenylmethyl siloxane oil, lithium soap, and molybdenum disulfide. It is intended for low-speed lubrication points operating under low to moderate loads, including applications exposed to water and extreme temperatures. The paste provides lubrication from −45°C to 230°C. Above 230°C, the silicone carrier volatilizes and the remaining dry lubricating film supports operation up to 400°C. The mineral-oil-free formulation is also suitable for selected elastomer and plastic components, subject to compatibility testing.
Key features
- Wide temperature capability: Provides paste lubrication from −45°C to 230°C and dry-film lubrication up to 400°C.
- Silicone carrier oil: Suitable for selected materials that are not resistant to mineral oils.
- Solid-lubricant protection: Contains molybdenum disulfide to maintain lubrication after the carrier volatilizes.
- Water resistance: Supports lubrication points exposed to water and moisture.
- Low-speed performance: Formulated for low-speed contacts under low to moderate loads.
- Flexible application: Can be applied by brush, spatula, grease gun, automatic lubricator, or compatible central lubrication system.
Applications / Suitable for
- Metal-to-metal friction and contact surfaces
- Plain bearings, bushings, and sleeves
- Slides, guides, and tracks
- Selected plastic, rubber, and elastomer components
- Brake anchor plates and disc-brake pistons
- Low-speed lubrication points exposed to water or extreme temperatures
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Thermal Properties
Additional Information
MOLYKOTE® M-77 Paste is a black-gray solid-lubricant paste based on polyphenylmethyl siloxane oil, lithium soap, and molybdenum disulfide. It is intended for low-speed lubrication points operating under low to moderate loads, including applications exposed to water and extreme temperatures. The paste provides lubrication from −45°C to 230°C. Above 230°C, the silicone carrier volatilizes and the remaining dry lubricating film supports operation up to 400°C. The mineral-oil-free formulation is also suitable for selected elastomer and plastic components, subject to compatibility testing.
Key features
- Wide temperature capability: Provides paste lubrication from −45°C to 230°C and dry-film lubrication up to 400°C.
- Silicone carrier oil: Suitable for selected materials that are not resistant to mineral oils.
- Solid-lubricant protection: Contains molybdenum disulfide to maintain lubrication after the carrier volatilizes.
- Water resistance: Supports lubrication points exposed to water and moisture.
- Low-speed performance: Formulated for low-speed contacts under low to moderate loads.
- Flexible application: Can be applied by brush, spatula, grease gun, automatic lubricator, or compatible central lubrication system.
Applications / Suitable for
- Metal-to-metal friction and contact surfaces
- Plain bearings, bushings, and sleeves
- Slides, guides, and tracks
- Selected plastic, rubber, and elastomer components
- Brake anchor plates and disc-brake pistons
- Low-speed lubrication points exposed to water or extreme temperatures
After-application / in-service properties
Typical performance characteristics relevant to the applied paste and remaining dry lubricating film.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Paste lubrication temperature range | −45 to 230 | °C | Paste-like lubricating state |
| Dry-film temperature capability | Up to 400 | °C | After carrier volatilization above 230°C |
| Four-ball weld load | 2,000 | N | DIN 51350-4 |
| Water resistance | Good | — | Supplier-listed qualitative performance benefit |
| Carrier volatilization | Leaves virtually no residue | — | At temperatures above 230°C; dry sliding film remains |
| Plastic and elastomer compatibility | Compatible with many types | — | Compatibility testing required before use |
