What is used to lubricate mechanical restraints?

Graphite is commonly used to lubricate mechanical restraints because of its unique properties that make it suitable for this purpose. Unlike oils or water, which can attract dirt and debris, graphite provides a dry lubrication that reduces friction without leaving a sticky residue. This is particularly important in environments where mechanical restraints are frequently used, as it helps maintain their functionality and reliability over time.

Additionally, graphite does not evaporate or degrade quickly, making it a long-lasting solution compared to other lubrication options. Oil-based lubricants can cause build-up over time, while water can promote rust in metal components. Petroleum jelly, while it can provide some lubrication, may also attract grime and detritus, which is not ideal for mechanical devices that need to function smoothly. Thus, the choice of graphite ensures optimal performance and longevity of the mechanical restraints.