Molybdenum Disulfide

Industrial Grade Solid Lubricant — Bulk supply across India & International Markets

What is Molybdenum Disulfide?

Molybdenum Disulfide (MoS2) is an inorganic compound with a distinctive layered crystal structure, similar in some respects to graphite, that gives it exceptional solid lubricating properties. The layers of molybdenum and sulphur atoms can slide easily over one another, providing low friction characteristics even under extreme pressure, high temperature, and vacuum conditions where conventional liquid lubricants fail. This unique combination of properties makes it one of the most valuable solid lubricant materials in demanding industrial and mechanical applications.

Polychem Industries supplies Industrial Grade Molybdenum Disulfide to lubricant manufacturers, grease formulators, bearing and gear component producers, and industrial maintenance companies across India and internationally. Its ability to provide reliable lubrication under extreme pressure, high temperature, and even vacuum conditions makes it indispensable in demanding mechanical and industrial applications where conventional oil-based lubricants are insufficient.

Available Grades

GradeFormPurityStandardApplications
Industrial / Technical GradeDark grey to black fine powder98%+ (Industrial / Technical Grade)Industrial / TechnicalLubricant additives, grease, dry film lubricants, bearings

Applications & Uses

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Solid Lubricant Additive in Grease

One of the most widely recognised applications. Molybdenum Disulfide is added to greases used in high-load, high-temperature, or extreme-pressure mechanical applications including bearings, gears, and chassis components, providing a protective lubricating film that performs where conventional grease alone would fail.

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Dry Film Lubricants

Used as the active lubricating component in dry film lubricant coatings applied to mechanical components, providing low-friction performance in applications where liquid lubricants are unsuitable, such as in vacuum environments or where contamination from liquid lubricants must be avoided.

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Automotive & Industrial Bearings

Used in bearing assemblies and high-load mechanical components subject to extreme pressure or boundary lubrication conditions, where it helps prevent metal-to-metal contact and reduces wear during start-up or under heavy load conditions.

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Aerospace & Vacuum Applications

Used in aerospace and space applications where its solid lubricating properties function effectively in vacuum conditions where liquid lubricants would evaporate or be ineffective, making it valuable for satellite mechanisms and other space hardware.

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High-Temperature Applications

Used in lubrication applications operating at elevated temperatures where conventional oil-based lubricants would degrade or burn off, taking advantage of MoS2's thermal stability and continued lubricating performance at high temperatures.

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Metal Forming & Die Lubrication

Used as a lubricant in metal forming, forging, and die-casting operations, helping reduce friction and wear between dies and workpieces during high-pressure metal forming processes.

Technical Specifications

Molybdenum Disulfide — Key Properties

Chemical FormulaMoS2
CAS Number1317-33-5
Molecular Weight160.07 g/mol
AppearanceDark grey to black fine powder
Purity98%+ (Industrial / Technical Grade)
Melting Point~2375°C (decomposes before melting in air)
Density / Bulk DensityBulk density: 0.7–1.0 g/cm3
pHNot applicable (insoluble solid)
Packaging Available25 kg bags / 200 kg drums
StorageStore in cool, dry place in sealed containers. Stable and chemically inert under normal storage conditions.

Why Source Molybdenum Disulfide from Polychem Industries?

  • Industrial and Technical Grade available with full documentation
  • Certificate of Analysis available on request
  • Exceptional performance under extreme pressure, temperature and vacuum
  • Reliable bulk supply for lubricant and grease manufacturers
  • Competitive pricing with consistent quality
  • Export documentation experience for international shipments

Frequently Asked Questions

Why is Molybdenum Disulfide such an effective solid lubricant?
Molybdenum Disulfide has a unique layered crystal structure where molybdenum atoms are sandwiched between layers of sulphur atoms, and these layers are held together by relatively weak forces that allow them to slide easily over one another. This gives MoS2 a very low coefficient of friction, and unlike many lubricants, this lubricating mechanism remains effective under extreme pressure, high temperature, and even in vacuum conditions where liquid lubricants would fail.
Can Molybdenum Disulfide be used in extreme temperature applications?
Yes — this is one of its key advantages over conventional lubricants. Molybdenum Disulfide remains an effective solid lubricant at temperatures where conventional oil-based lubricants would degrade, oxidise, or burn off. It can provide lubricating performance from cryogenic temperatures up to several hundred degrees Celsius in oxidising atmospheres, and even higher in inert or vacuum conditions.
What is the difference between Molybdenum Disulfide and graphite as a solid lubricant?
While both have layered crystal structures providing solid lubrication, Molybdenum Disulfide generally performs better in vacuum and dry conditions, as graphite's lubricating properties partly depend on adsorbed moisture or gases between its layers, making it less effective in vacuum or very dry environments. MoS2 also typically provides better performance under extreme pressure conditions, making it often preferred for the most demanding lubrication applications.
Do you export Molybdenum Disulfide outside India?
Yes. We export to Bangladesh, Sri Lanka, Nepal, Bhutan, and South Africa with full export documentation. Contact us for export pricing and lead times.

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