Which Grease to Choose for High-Temperature Applications?
Molykote P-3700 is a high-performance graphite-based assembly paste specifically designed to withstand the most demanding conditions. Developed by DuPont, this paste offers technical characteristics and benefits that make it an ideal choice for various industries facing extreme temperatures.
Technical Characteristics
- Composition: Graphite-based paste with mineral oil and special solid lubricants.
- Operating Temperature Range: -30°C to 900°C.
- Color: Dark gray.
Key Properties and Advantages
- Excellent Heat Resistance: Molykote P-3700 maintains its anti-seize properties up to 900°C, ensuring reliable protection in high-temperature environments.
- High Purity: Formulated without calcium, lead, nickel, sulfur, chlorine, or fluorine, it minimizes contamination risks and environmental impact.
- High Load Capacity: Its resistance up to 3000N ensures reliable performance under high stress.
- Friction Control: Allows precise tightening during assembly, improving efficiency and safety of operations.
- Ease of Disassembly: Even after prolonged exposure to high temperatures, it facilitates the disassembly of threaded connections.
- Environmentally and Health Friendly: No hazard labeling or precautionary statements, ensuring safer handling.
- Prevention of Hexavalent Chromium Formation: It does not form Cr(VI) when used on high-chromium alloys at temperatures above 500°C.
Typical Applications
Molykote P-3700 is particularly suitable for:
- Screws, nuts, and bolts subjected to high temperatures.
- Bolted joints in industrial equipment exposed to high temperatures.
Markets
Although specific market information is not directly mentioned, it can be inferred that Molykote P-3700 is used in:
- Heavy Industry: For equipment subjected to high thermal stress.
- Energy Sector: Particularly for gas and steam turbines in power plants.
- Automotive and Aerospace Industry: For components requiring extreme heat resistance.
- Various Sectors: Any sector involving equipment exposed to extreme temperatures.
Reduction of Hexavalent Chromium Formation
Molykote P-3700 significantly reduces hexavalent chromium (Cr(VI)) formation through:
- High-Temperature Efficiency: Designed for use on high-chromium and stainless steel alloys at temperatures above 300°C.
- Special Formulation: Its unique composition prevents Cr(VI) formation in high-chromium alloys exposed to high temperatures.
- High Purity: Free from calcium, lead, nickel, sulfur, chlorine, and fluorine, reducing the formation of harmful compounds.
- Durable Performance: Maintains its performance even at high temperatures, minimizing material degradation and Cr(VI) formation.
- Extended Temperature Range: Effective in preventing Cr(VI) from -30°C to 900°C.
Specific Advantages for Overheated Joints
- Exceptional Heat Resistance: Effective up to 900°C, ideal for joints subjected to extreme temperatures.
- Ease of Disassembly: Allows easy loosening of threaded connections after prolonged exposure to high temperature.
- Anti-Seize Prevention: Ensures joints remain functional even under intense heat conditions.
- Corrosion Protection: Provides good corrosion protection, essential for overheated joints exposed to aggressive environments.
- Reduction of Hexavalent Chromium Formation: Reduces Cr(VI) formation on high-chromium alloys exposed to high temperatures.
- Wide Temperature Range: From -30°C to +900°C, allowing use in various thermal conditions.
- High Load Capacity: Ensures reliable performance even under high stress.
- Friction Control: Provides controlled friction during assembly, allowing precise joint tightening.
Conclusion
Molykote P-3700 is a high-performance anti-seize paste, particularly suited for demanding industrial applications requiring resistance to very high temperatures, while offering excellent protection against seizure and ease of disassembly. Thanks to its unique properties, it plays a crucial role in protecting workers’ health and the environment, while ensuring optimal performance of industrial equipment.