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> Tungsten disulfide 0.6MICRON superlubricant .5OZ
Tungsten disulfide 0.6MICRON superlubricant .5OZ
This is a 1/2oz Squeeze Bottle of .6Micron Tungesten Disulfide As Seen Above in the Picture. If there are any other questions please feel free to email me...
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 (-270 C) to 1200 deg F (650 C) in normal atmosphere and from -305 deg F (-188 C) to 2400 F (1316 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. .
Two established ways the WS2 powder can be used are:
1) 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/moving parts, which in turn reduces friction and improves lubricity and load bearing ability for much longer cycles.
2) Coating the WS2 powder on a substrate requiring (dry) lubricity:
The 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 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. The coating applications are already established in many areas such as Automotive parts, Racing Car Engine and other parts, Aerospace parts, Bearings (Linear, Ball, Roller etc), Shafts, Marine parts, Cutting Tools, Blades, Slitters, Knives, Mold release, Precision Gears, Valve components, Pistons, Chains, Machinery components and many other areas
Physical and Technical Properties Properties
Ambient: from -273o C to 650o C
Vacuum(10-14 Torr): from -188o C to 1316o C
Spray Blast substrate with Cold and Dry Air at 120 PSI
Can slow down the corrosion rate, but can not fully prevent substrate corrosion
Iron, Steel, Aluminum, Copper, other Metals, Plastics and Manmade Solids
Oil, Solvent, Paint, Fuel, Water, Resin/Plastic,
Comparison between Molybdenum Disulfide (MoS2) & Tungsten Disulfide (WS2)
Tungsten Disulfide (WS2) is one of the most lubricous materials known to science. With Coefficient of Friction at 0.03, it offers excellent dry lubricity unmatched to any other substance. It can also be used in high temperature and high pressure applications. It offers temperature resistance from -450o F (-270o C) to 1200o F (650o C) in normal atmosphere and from -305o F (-188o C) to 2400o F (1316o C) in Vacuum. Load bearing property of coated film is extremely high at 300,000 psi.
Tungsten Disulfide (WS2) can be used instead of Molybdenum Disulfide (MoS2) and Graphite in almost all applications, and even more. Molybdenum and Tungsten are from same chemical family. Tungsten is heavier and more stable. Molybdenum Disulfide (Also known as Moly Disulfide) till now has been extremely popular due to cheaper price, easier availability and strong and innovative marketing. Tungsten Disulfide is not new chemical and has been around as long as Moly, and is used extensively by NASA, military, aerospace and automotive industry.
Till few years ago, price was Tungsten Disulfide was almost 10 times that of Molybdenum Disulfide. But since then price of Molybdenum Disulfide has doubled every six months. Now the prices of both chemicals are within comparable range. Now, it makes more economic sense to use superior dry lubricant (Tungsten Disulfide) and improve the quality and competitiveness of final product.
Tungsten Disulfide offers excellent lubrication under extreme conditions of Load, Vacuum and Temperature. The properties below show that Tungsten Disulfide offers excellent thermal stability and oxidation resistance at higher temperatures. WS2 has thermal stability advantage of 93oC (200oF) over MoS2. Coefficient of Friction of WS2 actually reduces at higher loads.
