MOLYKOTE PA-744
Harmonization Code : 3909.20.00.90 | Amino-resins, phenolic resins and polyurethanes, in primary forms : Melamine resins : Other
Main features
- 10 to 20 um Screen-Printed Film
- High-Wear High-Load Dry Lubrication
- -75 to 300 deg C Service Range
Product Description
MOLYKOTE® PA-744 Anti-Friction Coating is a charcoal-gray, heat-cured dry-film lubricant containing graphite and molybdenum disulfide in an organic resin-solvent system. Formulated for screen-print application, it creates a long-term lubricating film for pistons used in automotive air-conditioning compressors, gasoline and diesel engines, pumps, and pneumatic or hydraulic systems. A recommended cured film thickness of 10–20 µm supports controlled coating application. The cured coating operates from −75°C to 300°C and provides high wear resistance, load-carrying capability, and resistance to motor oils under the documented conditions.
Key features
- Screen-print application: Formulated for controlled deposition by screen printing.
- Thin cured film: Recommended cured coating thickness is 10–20 µm.
- Wide operating-temperature range: The cured coating operates from −75°C to 300°C.
- Wear and load protection: Provides an extreme-wear-resistant coating with high load-carrying capacity.
- Motor-oil resistance: Offers documented resistance to motor oils.
- Run-in lubrication: Helps reduce piston and cylinder-wall wear during initial run-in and cold-start conditions.
Applications / Suitable for
- Automotive air-conditioning compressor pistons
- Gasoline and diesel engine pistons
- Pistons used in pumps
- Pneumatic-system pistons
- Hydraulic-system pistons
- Metal components requiring screen-printed dry-film lubrication
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Thermal Properties
Additional Information
As-supplied / before-processing properties
Typical as-supplied characteristics and storage information for MOLYKOTE® PA-744 Anti-Friction Coating. Values are not intended as specification limits.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Product type | Anti-friction coating | — | Heat-cured dry-film lubricant |
| Technology | Organic binder, solids and solvent | — | Organic resin-solvent dispersion |
| Solid lubricants | Graphite and molybdenum disulfide | — | Graphite and MoS2 blend |
| Color | Charcoal gray | — | Typical property |
| Viscosity | 23,000 | cP | Typical value; test method not stated |
| Density | 1.21 | g/mL | At 25°C |
| Flash point | 34 | °C | Typical value; equivalent to 93°F |
| Recommended cured film thickness | 10–20 | µm | Screen-print application |
| Usable life | 9 | months | Original sealed container stored above −18°C |
After-processing / final-state properties
Typical properties of the cured MOLYKOTE® PA-744 dry lubricating film under the stated preparation and test conditions.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Cure time | 90 | min | At 180°C |
| Alternative cure time | 60 | min | At 230°C |
| Operating-temperature range | −75 to 300 | °C | Cured coating; supplier-listed operating range |
| Coefficient of friction | 0.045 | — | Polymer tester; 50 cycles, 250 g load, 20 mm stroke |
| Theoretical coverage | 60 | ft²/lb | At 10 µm cured film thickness |
| Motor-oil resistance | Good | — | Supplier-documented qualitative performance characteristic |
| Wear and load performance | High wear resistance and load-carrying capacity | — | Supplier-documented qualitative performance characteristic |
