Dry Film Lubricants

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Dry Film Lubricants
Jan 14,2014

Dry film lubricants are defined as one or more solids used between two surfaces in relative motion for the purpose of lowering friction or reducing wear.

Unlike greases (solid or semi-fluid based dispersions of a thickening agent in a lubricant) or the use of oils.

Also known as solid films, these are best utilized in extreme environments, such as very high temperature or pressure, where organic-based compounds could never survive.

Everlube Products Pioneer and Leader in Solid Film Lubricant Technology.
Examples of the more frequently applied compounds include graphite, tungsten disulfide (WS2), and molybdenum disulfide (MoS2). Their material characteristics work similarly, in that each exhibits high ductile shear under an applied tangential force, like in the motion of sliding.

To have low friction, your dry film lube must have both low shear strength and adherence to the surface. These are materials having a special crystalline habit which causes it to shear into thin, flat plates, which readily slide over one another and thus produce low friction or a slipping effect.

For illustration purpose, imagine a series of vertically stacked plates (called basal planes) supported by long, wobbly legs (weak Van der Waals forces). Under an applied lateral force, the legs

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