Lubricant Agent

Lubricant condition does not only change when in service, but it can also change when in storage. Any exposure to dust, dirt, water, or other particles during the storage process could result in lubricant contamination, making that lubricant less effective in service. Similarly, prolonged exposure to adverse conditions such as extreme temperatures can alter key lubricant characteristics. That’s why storage in properly sealed containers and dedicated storage areas with the right ambient conditions is critically important.

Whenever possible, lubricants should be stored indoors, ideally in an area that is air-conditioned and that can maintain constant temperatures. The floor should be level and oil resistant and the storage area should be well ventilated. The area should also have shelving that adequately protects all containers. For example, the viscosity index improver polymer additives in crankcase oils can degrade in sunlight, so these oils should not be stored in clear containers exposed to sunlight.

Storage isn’t the only time the lubricant is susceptible to contamination – proper lubricant handling is equally important. Maintenance personnel should implement good handling practices to ensure cleanliness, including the use of regularly maintained lubrication trolleys and dispensers. The maintenance team should also properly clean the lubrication points prior to application to minimize the risk of contamination.

Whether your lubricants are stored indoors or outside, environmental conditions can reduce their shelf life. The fluids are vulnerable to contamination by dust and dirt. Fluctuating temperatures cause a reaction known as thermal siphoning, in which air moves in and out of the container’s head space and the atmosphere — even in sealed containers with no oil going in or out. Moisture and airborne particles travel with the air, resulting in contamination and degradation of the oil. Extreme hot or cold temperatures can lead to chemical degradation as well.

Ideally, lubricants should be stored indoors, if possible, where the environment can be better controlled. A clean, dry environment kept at a stable, moderate temperature is best. Do not, for example, store lubricants near sources of heat or steam.

If outdoor storage cannot be avoided, lubricants should be sheltered as much as possible from environmental conditions that may degrade them. For example, a roof or tarpaulin can help shelter lubricants from precipitation as well as from the heat generated by direct sunlight. In addition, placing containers on blocks or racks can help protect them from ground moisture.