Tungsten Disulfide Powder Usage

The usage of tungsten disulfide powder is it can be used in high temperature and high-pressure applications. It offers temperature resistance from -450 degree F (-270℃) to 1200 degree F (650℃) in normal atmosphere and from -305 deg F (-188℃) to 2400º F (1316℃) in vacuum.

Load bearing ability of coated film is extremely high at 300,000 psi. Tungsten disulfide powder can also be used instead of molybdenum disulfide powder. 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.

Usage of tungsten disulfide powder is mixing the WS2 powder with wet lubricants (such as oil, grease & other synthetic lubricants). The powder can be mixed 1wt% to 15wt% (as 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, WS2 in the mixture will get coated on mating or moving parts, which reduces friction and improves lubricity, and it also load the bearing ability for much longer cycles.

Second step is coating WS2 powder on a substrate which required for dry lubricity material. The WS2 powder can be coated by spraying (at 120 psi) the substrate with dry and cool pneumatic air. It does not require any binders and spraying can be done at normal room temperature. Coated film will be 0.5 micron thick. In an alternative application method, the powder can also be mixed with Isopropyl alcohol and this paste could be buffed to the substrate.

Tungsten disulfide is a durable coating and normally does not need to be recoated for approximately one year. Glass filled or talc filled resins of 30% or more, this will reduce the life of the coating because of their abrasive nature. To protect your items coated with tungsten disulfide. Firstly, cleaning solvents such as trichlorethane, acetone, mineral spirits, or you can use alcohol as well. These items can be used without adverse affects. Strong alkaline solutions or acids cannot be used. Second the coating is compatible with all mold saver type products. We do recommend that a corrosion protector be used on molding surfaces during storage.

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