EP (extreme pressure) greases often contain additives such as:
- Extreme pressure agents: These additives form a protective film on the metal surface to prevent metal-to-metal contact and reduce friction and wear under heavy load or high pressure conditions.
- Anti-wear additives: These additives provide additional protection against wear by forming a protective layer on the metal surface and reducing friction.
- Antioxidants: These additives help prevent grease oxidation, which can lead to the formation of acids and sludge and ultimately reduce the performance of the grease.
- Anti-rust and corrosion inhibitors: These additives protect metal surfaces from rust and corrosion, ensuring the service life of the equipment.
- Antifoaming agents: These additives reduce the formation of foam during operation, which can interfere with the grease’s ability to effectively lubricate.
- Thickeners: These additives are responsible for the grease’s consistency and ability to stay in place under varying operating conditions. Commonly used thickeners in EP greases include lithium, calcium or aluminum soaps.
- Friction modifiers: These additives enhance the lubrication properties of grease by reducing friction and increasing the overall efficiency of the lubrication system.
It is important to note that the specific additives and their concentrations may vary depending on the EP grease’s intended application and performance requirements.