Applications of Tungsten Disulfide

Tungsten Disulfide whose chemical formula is WS2, can be used in high temperature and high pressure applications. It offers temperature resistance from -270º C to 650º C in normal atmosphere and from -188º C to 1316º C in Vacuum. Load bearing ability of coated film is extremely high at 300,000 psi. WS2 can also be used instead of molybdenum disulfide-MoS2. 

 The WS2 powder could be mixed with wet lubricants:
The tungsten disulfide powder can be mixed 1wt% to 15wt% (as users required) with grease or oil. This will enhance lubricity of the mixture and also improves High Temperature and Extreme Pressure properties of mixture. During the use, tungsten disulfide in the mixture will get coated on mating/moving parts, which in turn reduces friction and improves lubricity and load bearing ability for much longer cycles.

The tungsten disulfide powder can be coated by spraying (at 120 psi) the substrate with dry & cool pneumatic air. It does not require any binders and spraying can be done at normal room temperature. Coated film will be 0.5 um thick. In an alternative application method,  tungsten disulfide powder could be mixed with Propyl alcohol and this paste could be buffed to the substrate. 

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Tungsten Disulfide (WS2)

Tungsten disulfide (WS2) is dry/solid lubricant powder and is one of the most lubricious substance in world. WS2 offers excellant dry lubricity (COF: 0.03) unmatched to any other substance, including Graphite or Molybdenum Disulfide (MoS2).
Tungsten disulfide (WS2) can also be used in high temperature and high pressure applications. It offers temperature resistance from -450 deg F (-270º C) to 1200 deg F (650º C) in normal atmosphere and from -305 deg F (-188º C) to 2400º F (1316º C) in Vacuum. Load bearing ability of coated film is extremely high at 300,000 psi.
Tungsten disulfide (WS2) can also be used instaed of Molybdenum Disulfide (MoS2). See comparison of WS2 / MoS2
Since the powder offers one of the lowest Coefficient of Friction (Dynamic @ 0.03 & Static @ 0.07), the applications are unlimited and could be tried with every conceivable idea.

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