Our industrial and manufacturing customers need a lubricant that they can trust to provide the performance and reliability they demand from their equipment. NanoSlick Lubricants has been providing superior lubrication with high-performance, extreme pressure and high temperature for many years to hundreds of medium to large scale businesses around the world.
NanoSlick Lubricants are produced with Pure 99.9% Tungsten Disulfide (WS2). Tungsten is unmatched in its exceptional ability to withstand even the most extreme conditions such as saltwater corrosion, rust, tremendous temperature ranges of -350° F to +1000° F, and extreme pressures up to 300,000psi.
Did you know that Tungsten Disulfide is rated far superior than Titanium, Teflon, Graphite and MolyB lubricants!
- Provides Extended Equipment Life
- Less Frequent Lubrication Maintenance
- Noise and Wear Reduction
- High Load Tolerances
- High Temperature Tolerance
- Reduced Friction by up to 68%
Component Parts and Assemblies that benefit from Tungsten Disulfide (WS2)
Tungsten Disulfide (WS2) is an excellent coating for bearings where conventional lubricants can not be used or where the application requires the insurance of a permanent lubricant for extended wear life as in gear motors or transmissions. From miniature bearings used in dental hand pieces to large bearings for electrical power plants, the coating is excellent at extending wear life. Bearings with the WS2 coating applied by Micro Surface will have a blue-gray color.
Injection Mold Tooling
All mold components that contact resin such as slides, gibs, and inserts benefit from improved resin flow and mold release of 3 to 9% and increased productivity from 4 to 8% on average. It does not transfer to finished parts and provides longer lasting release than alternitives such as mold spray.
Automotive components such as engine and rod bearings as well as transmission and differential parts and CV joints have lower friction which provide longer wear life, reduced squeaking and noise, better gas milage and reduced fuel costs by requiring less energy.
Gears for a number of devices benefit from lower friction and longer wear life such as those used in office equipment, pulp and paper handling machinery, clean rooms, automotive transmissions, rear end differentials, high load heavy equipment, and generators.
Ball screws coated with Tungsten Disulfide run smoother from having lower friction and as a result will have longer life.
Shafts coated with WS2 have longer life because they run smoother with less friction. Common applications are in motor drives, spline shafts, acme screws, and turbine engines.
Wear Plates are able to function at high temperatures with a lower coefficient of friction extending wear life.
Chain coated with Tungsten Disulfide is able to run without wet lubrication and also benefit from lower friction.
Tungsten Disulfide coated valves benefit from lower friction and in turn longer wear life which is beneficial in automotive fuel injection systems, diesel hydraulic systems, ball and metering valves, and nuclear systems.
Steel, stainless steel, or titanium bolts, screws, nuts, and fasteners have lower friction making it easier to assemble and disassemble & also prevents galling.
Cutting Tools coated with Tungsten Disulfide provide a better surface finish and have a longer wear life.
Tungsten Disulfide (WS2) is inert, non-toxic, and non-corrosive. WS2 can be applied to all stable metal substrates. It is impervious to most solvents, refined fuels, and chlorinated solvents. It is attacked by fluorine gasses, sulfuric and hydrofluoric acids and hot, caustic alkaline solutions. WS2 is resistant to corrosion but cannot inhibit the effect of corrosion on inherently low resistance materials.
WS2 operates from -460°F to 1200°F in normal atmosphere and 2400°F in a vacuum. At about 825°F there is an oxidation threshold and the rate is quite slow compared to other lubricants. Out-gassing characteristics are quite low too. Tungsten Disfulfides ability to withstand high temperatures makes it excellent for bolts, studs, and shafts that are used in engine exhaust systems of all types of vehicles.
Benefits and Capabilities of Tungsten Disulfide (WS2)
- The WS2 low friction coating overcomes or reduces mechanical lubrication problems which improve performance and extend service life.
- Reduces friction to lower emissions as less fuel is used for a given power level when applied to engine parts such as pistons rings, cams and bores.
- Eliminates and reduces costly maintenance problems that cause breakdowns and expensive downtime by stopping galling, fretting and friction caused by dissimilar metals and their different hardness factors.
- Maintains the dimensional integrity of the substrate to within 1/2 micron with no build-up. Tungsten Disulfide (WS2) particles will not adhere to themselves so the coating thickness is limited to 1/2 micron.
- Withstands loads to 100,000 psi (or load capacity equal to substrate) and operates in the temperature range of -460°F to 1200°F (-273°C to 650°C).
- Offers 100% Lubricity throughout its texture.
- Is inert, inorganic, non-toxic, non-distortive, non-corrosive and resistant to most fuels solvents. It is compatible with and enhances the performance of all oils and greases.
- Resists carbon build-up due to its extremely low co-efficient of friction, less than half that of graphite, Moly (MoS2) and Teflon.
- Molecularly bonds to all materials and platings and can only be eliminated by removing the bonded substrate.
- No bakeout or heat curing is required for the application of Tungsten Disulfide (WS2).
Common Questions and Answers about Tungsten Disulfide (WS2)
What is the effect of temperature (thermal stability) on the coating performance?
The Tungsten Disulfide (WS2) coating is thermally stable between -460°F to +1200°F.
How scratch resistant is Tungsten Disulfide (WS2)?
Sharp objects can remove the coating and in harsh dusty environments the life of the coating is decreased.
Is Tungsten Disulfide (WS2) electrical conductive?
Yes, Tungsten Disulfide (WS2) is electrically conductive although in and in low voltage (mil amps) there can be some resistance.
Is it possible to coat non-metallic surfaces such as carbon fiber, plastic, rubber, ceramic, etc with Tungsten Disulfide (WS2)?
Tungsten Disulfide (WS2) is best applied on metal surfaces such as steel, aluminum, titanium, or magnesium but can be applied to carbon fiber, rubber as well as polyimide plastic retainers which had good success when coated as part of an assembled bearing. Glass and ceramics are not good candites for the coating.
Can the thickness of Tungsten Disulfide (WS2) be maintained in mass production?
Uniform thickness of Tungsten Disulfide (WS2) can be maintained because the material will not stick to itself which leaves the coating thickness to be determined by the particle size (1/2 micron thick).
What surface roughness is required to achieve good adhesion with Tungsten Disulfide (WS2)?
Surface roughness is not a factor, a clean and non-oxidized surface is the normal surface. Excellent coating adhesion can be achieved on Ra finishes as fine as 2.
Will laser marking affect the coating color or performance of Tungsten Disulfide (WS2)?
Laser markings will not affect the color or performance.
What is the impact of Tungsten Disulfide (WS2) on noise and torque level?
When Tungsten Disulfide (WS2) is applied to head tooling, gears, bearings, bushing and related components the noise level and energy consumption are reduced and spindle speeds are increased without chatter.
Is it possible to coat a specific region like inner track, outer track and seal grooves only?
Yes, specific areas can be coated with fixturing and masking.
Is it advisable to coat only balls rather than coating all components? If we only coat the balls, will it cause any problem when sliding with un-coated races during application?
The best low friction and extended wear life results have always been achieved when all matting surfaces are coated. However, only coating the balls is also done on some applications with good results. The un-coated areas do not exhibit any detrimental effects.
Will the coating react with grease at higher temperature?
Tungsten Disulfide (WS2) is completely compatible with all greases and oils. It is frequently used with high temperature greases in steel mills and rolling mills at aluminum plants.
Should Tungsten Disulfide (WS2) be applied in the assembled condition or before assembly?
The best results are achieved when individual components are coated but very good results can also be achieved on fully assembled items.
What is the corrosion resistance of Tungsten Disulfide (WS2)?
Tungsten Disulfide (WS2) is not a corrosion inhibiting coating, it will slow down the process but will not add any significant resistance.
Can the coating thickness of Tungsten Disulfide (WS2) be increased? What is the relationship between coating thickness and life?
Increasing the coating thickness does not increase the life or functionality of the coating.
What are the failure modes of the Tungsten Disulfide (WS2) coating, how long will it last?
The coating can be removed with acids or high alkalies. Tungsten Disulfide (WS2) does not crack or peel off. In a non-abrasive environment the coating is permanent. On an injection mold running non-abrasive resins 24/7 it will last 12-14 months.
I have a mold with an A2 mirror finish that makes a clear part, can Tungsten Disulfide (WS2) maintain this finish?
Tungsten Disulfide will maintain a mirror finish to produce clear parts.
How is “impinging" superior to Tungsten Disulfide (WS2) aerosol spray cans sold online? Can I apply the coating myself?
Aerosol spray cans sold online do not provide the performance of factory applied Tungsten Disulfide (WS2) coating. The spray cans do not provide an inert Tungsten Disulfide (WS2) because there are chemical dispersion and solvents used to keep the material in suspension. These chemical contaminants are deposited on the surface of the parts trying to be coated and therefore deter adhesion. WS2 particles have a very high molecular weight and consequently will settle in solvents and not flow evenly. The chemical additives reduce and lower the temperature range both on the top end as well as at the bottom end. Most solvents used in aerosol cans boil off at very low temperatures and do not work well at sub-freezing temperatures either. Adhesion of the Tungsten Disulfide (WS2) particles cannot take place with an aerosol spray technique because of the nature of the material. The coating was developed for NASA and requires a very detailed protocol and process to achieve adhesion on all substrates.