Storage and Usage Tips to Prevent Grease Hardening and Oil Separation

During storage and operation, grease may face common issues such as hardening and oil separation. These changes reduce lubrication effectiveness and may cause equipment malfunctions. Proper storage and handling are essential to maintain grease performance and extend its service life.

1. Causes and Prevention of Hardening

• Causes: Grease exposed to air leads to base oil evaporation and thickener oxidation, or structural changes caused by high temperatures.

• Prevention:

  • Store grease in sealed containers to avoid air and moisture exposure.

  • Keep in a cool, dry place away from heat and sunlight.

  • Use quickly after opening; minimize frequent opening of containers.

2. Causes and Prevention of Oil Separation

• Causes: Separation of base oil from the thickener, usually due to long storage or high temperatures.

• Prevention:

  • Choose grease with strong resistance to oil separation.

  • Store containers upright in stable, cool environments.

  • If slight oil separation occurs, stir before use.

3. Usage Guidelines

• Avoid mixing different types or brands of grease to prevent compatibility issues.

• Re-lubricate regularly according to equipment requirements to avoid degradation under heat or heavy loads.

• For automatic lubrication systems, inspect grease condition regularly to prevent clogging from hardened grease.

Conclusion
Proper storage and handling are effective ways to prevent grease hardening and oil separation. By selecting the right grease and following scientific usage practices, industries can ensure reliable equipment performance and extend service life.