Molybdenum Disulfide (MoS2) Powder | MoS2 powder at Lower Friction

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Molybdenum Disulfide Powder (MoS2 Powder / Moly Powder)

Molybdenum disulfide powder, also known as MoS2 powder or moly powder, is a dry/solid lubricant powder used in industrial lubrication, coatings, polymers, metal forming and research applications. It has a hexagonal lamellar crystal structure that helps form low-friction lubricating films on compatible surfaces.

Lowerfriction supplies molybdenum disulfide powder in multiple particle sizes for dry lubrication, grease and oil additives, coatings, polymers and other industrial use requirements. Available grades include nano/fine and technical particle sizes, with custom sizing available on request.

Engineer / Procurement Summary: MoS2 powder is a high-load dry lubricant material with formula MoS2, CAS No. 1317-33-5, +98.5% purity where applicable, available in 90 nm, 1.5 micron, 4.5 micron and 12.5 micron particle sizes. It is suitable for dry lubrication, grease/oil additive use, coatings, polymers, vacuum environments and cold metal forming applications.

Quick Product Data

Common names	MoS2 powder, molybdenum disulfide powder, moly powder
Chemical formula	MoS2
CAS No.	1317-33-5
Purity	+98.5% purity where applicable / confirm against selected SKU and latest product document
Appearance	Crystalline solid / powder
Color	Blue-silver gray / grey
Molecular weight	160.08 / 160.07 g/mol
Density	5060 kg/m³ / 5.06 g/cm³ at 25°C
Primary product use	Industrial lubricants, dry solid lubrication, lubricant additives, coatings and laboratory research purposes
Product numbers	MK-MoS2-xxx; MKN-MoS2-xxx
Brand	Lowerfriction Lubricants / MKnano

Available MoS2 Powder Particle Sizes

Particle Size	Grade / Product Direction	Suggested Use	Availability / Product Note
90 nm	Nano / fine MoS2 powder	Research, thin film, fine dispersion and nano-grade dry lubricant applications	Available; confirm against current inventory or request as custom size
1.5 micron	Superfine MoS2 powder; +98.5% purity where applicable	Grease, oils, fine coatings and additive systems requiring smaller particle distribution	Available as standard product
4.5 micron	Technical fine grade MoS2 powder; +98.5% purity where applicable	General dry lubricant powder, coatings, polymers and industrial additive applications	Available as standard product
12.5 micron	Technical grade MoS2 powder; +98.5% purity where applicable	Heavy-duty dry lubrication, metal forming and high-load lubricant systems	Available as standard product
Custom sizes	Custom / bulk grade	Application-specific industrial requirements	Request custom particle size or bulk quotation

Which Particle Size Should I Choose?

Application Need	Suggested Grade / Particle Size	Buyer Guidance
Nano/research or thin coating applications	90 nm	Best for buyers who need very fine dispersion or research-grade material. Confirm availability before purchase.
Grease and oil additive use	1.5 micron or 4.5 micron	Use when the powder must disperse into lubricant systems while improving load-bearing and friction performance.
General dry lubricant powder use	4.5 micron	Suitable starting point for broad industrial dry/solid lubricant applications.
Heavy-duty dry lubrication or cold metal forming	12.5 micron or application-specific grade	Useful where high-load performance and extreme pressure lubricant properties are required.
Unclear application or non-standard requirement	Custom size / technical consultation	Share your substrate, environment, temperature, load and carrier medium with us for a recommendation.

Need help choosing a grade? Contact Lowerfriction with your application details.

Standard Packing Options

Packing Size	Packaging Format
1 lb	Plastic bag
10 lbs	Plastic bag
25 kg / 55 lbs	Small drum
Bulk / custom	Available on request, subject to confirmation

MoS2 Lubricant Performance Data

Property	Data / Performance Direction
Lubricant type	Dry / solid lubricant powder
Film-forming property	Excellent film-forming properties
Moisture-free environment use	Excellent lubricant below 400°C
Inert atmosphere performance	Excellent lubricity properties
High vacuum performance	Suitable where conventional liquid lubricants may fail
Extreme pressure performance	Offers extreme pressure lubricant properties
Load-bearing ability	Up to 250,000 psi (as listed in product brochure)
Example application	Cold metal forming

Application Clusters

MoS2 Powder for High-Vacuum Lubrication

MoS2 powder is useful in high-vacuum environments where conventional liquid lubricants can evaporate, migrate or fail. Its lamellar crystal structure helps create a dry lubricating film between compatible surfaces, supporting low-friction movement under demanding operating conditions.

Suitable for vacuum and low-moisture lubrication environments.
Useful where liquid lubricants are not practical or desirable.
Relevant for precision components, laboratory systems and industrial mechanisms requiring dry lubrication.

MoS2 Powder for Grease and Oil Additives

MoS2 powder can be used as an additive in greases and oils to support load-bearing performance, reduce friction and improve lubrication under high-pressure contact conditions. Particle size selection should depend on the lubricant carrier, dispersion requirements and final application.

1.5 micron and 4.5 micron grades are useful starting points for many additive applications.
Fine grades may support better dispersion in selected lubricant systems.
Compatibility with the carrier oil/grease should be validated before production use.

MoS2 Powder for Cold Metal Forming and Extreme Pressure Applications

For cold metal forming and high-load industrial use, molybdenum disulfide powder provides extreme pressure lubricant properties and high load-bearing ability. It can help reduce metal-to-metal friction when selected and applied correctly for the substrate and process.

Useful for high-load applications where film strength is important.
The product brochure lists load-bearing ability up to 250,000 psi.
Application trials are recommended for heavy-duty industrial processes.

MoS2 Powder for Coatings, Paints and Polymers

Molybdenum disulfide powder can be incorporated into paints, coatings, polymers and other solid systems to improve lubricity and reduce friction. Particle size should be selected based on the coating thickness, surface finish requirement, dispersion method and substrate compatibility.

Compatible application categories include polymers, paints and other coatings.
Can be used with compatible metals, plastics and manmade solids.
Fine or technical grades should be selected according to desired surface finish and dispersion performance.

Lubrication Temperature Range

Environment	Temperature Range
Ambient	-185°C to 350°C
Vacuum	-185°C to 1100°C

Coefficient of Friction and Thermal Stability

Condition	Reported COF / Stability Data
In air	COF < 0.1 at 600°F / 316°C
In air, higher temperature	COF increases to 0.5 at 1100°F / 594°C
In argon	COF increases rapidly starting at 800°F / 426°C
In argon, higher temperature	COF > 0.1 at 900°F / 482°C

Compatible Applications and Materials

Category	Data from Product Brochure
Additive applications	Grease, oils, polymers, paints and other coatings
Compatible substrates	Iron, steel, aluminum, copper, other metals, plastics and manmade solids
Compatibility	Oil, solvent, paint, fuel
Chemical durability	Inert substance as described in the brochure; verify safety handling against SDS
Magnetism	Non-magnetic

MoS2 vs WS2 vs hBN vs Graphite

Material	Best-Fit Use Direction	Key Difference / Selection Note
MoS2 powder	High-load dry lubrication, grease/oil additives, coatings, polymers and vacuum-related applications	Strong choice when load-bearing ability and dry film lubricity are important.
WS2 powder	Advanced dry lubrication and applications needing very low friction at small particle sizes	Useful comparison product for buyers evaluating solid lubricant alternatives.
hBN powder	High-temperature, electrically insulating and release-agent applications	Often selected where boron nitride properties are preferred over metal sulfide lubricants.
Graphite powder	General dry lubrication where environmental moisture is present	Common dry lubricant, but performance behavior differs from MoS2 in vacuum or low-moisture conditions.

Physical and Technical Properties

Important Technical Data Note: The product brochure and SDS may report different thermal values. Do not present them as identical values. Refer to the specific source document and confirm the preferred published value with us if needed.

Property	Molybdenum Disulfide Powder
Melting / decomposition point (brochure)	1185°C, decomposes
Melting/freezing point (SDS)	2375°C / 4307°F
Density	5060 kg/m³ / 5.06 g/cm³ at 25°C
Molecular weight	160.08 / 160.07 g/mol
Appearance	Crystalline solid / powder
Color	Blue-silver gray / grey
Water solubility	No data available in SDS
Chemical stability	Stable under recommended storage conditions
Materials to avoid	Hydrogen peroxide, strong oxidizing agents

Safety and Handling Snapshot

Safety Disclaimer: This summary is provided for quick product evaluation only. Always review the latest Safety Data Sheet before handling, storage, transport or workplace use.

Safety Area	SDS Information
WHMIS classification	Not WHMIS controlled
GHS classification	Acute toxicity, inhalation, Category 4
Signal word	Warning
Hazard statement	H332: Harmful if inhaled
HMIS health hazard	1
HMIS flammability	0
HMIS physical hazards	0
Conditions of flammability	Not flammable or combustible
Storage	Keep container tightly closed in a dry, well-ventilated place
Handling	Avoid contact with skin and eyes; avoid dust and aerosol formation
Ventilation	Provide appropriate exhaust ventilation where dust is formed
Transport status	DOT, IMDG and IATA: Not dangerous goods

Personal Protection Guidance

Protection Type	SDS Guidance
Respiratory protection	P95 / P1 particle respirator for nuisance exposure; higher-level cartridges for higher protection
Hand protection	Handle with gloves
Eye protection	Safety glasses with side shields
Skin / body protection	Protective equipment based on workplace concentration and amount
Hygiene	Wash hands before breaks and at end of workday
Engineering controls	Use mechanical exhaust or laboratory fume hood to avoid exposure

Advanced Material Data

Electronic / Optoelectronic Property	Data
HOMO	-6.39 eV
LUMO	-4.50 eV
Bandgap	Eg = 1.89 eV
Classification	2D semiconducting materials, monolayer materials, thin-layered transition-metal dichalcogenides, n-type semiconductors

Product Documents

Download Molybdenum Disulfide Powder Product Brochure | Download Molybdenum Disulfide Powder SDS

Frequently Asked Questions

What is MoS2 powder?

MoS2 powder is molybdenum disulfide powder, a dry/solid lubricant powder with the chemical formula MoS2.

Is molybdenum disulfide powder the same as moly powder?

Yes. Moly powder is a common short name used for molybdenum disulfide powder or MoS2 powder.

What is MoS2 powder used for?

MoS2 powder is used as a dry lubricant additive in grease, oils, polymers, paints and other coatings. It is also used in high-load and vacuum-related lubrication applications where conventional lubricants may fail.

What particle sizes are available?

MoS2 powder is available in 90 nm, 1.5 micron, 4.5 micron and 12.5 micron particle sizes. Larger or custom sizes may be possible as custom orders. Verify 90 nm availability before purchase if it is not actively listed as a standard product.

Which particle size should I choose?

For fine dispersion in lubricant systems, 1.5 micron or 4.5 micron grades are useful starting points. For heavy-duty dry lubrication or cold metal forming, 12.5 micron or an application-specific grade may be more suitable. For nano/research needs, check 90 nm availability.

Is MoS2 powder suitable for high-load applications?

Yes. The product brochure lists load-bearing ability up to 250,000 psi.

Can MoS2 powder be used in high-vacuum environments?

Yes. MoS2 powder is suitable for vacuum-related dry lubrication where conventional liquid lubricants may fail or be unsuitable.

What is the difference between MoS2 powder and WS2 powder?

Both are solid lubricant powders, but they may be selected for different operating requirements, particle size needs and application environments.

Can MoS2 powder be used in coatings and polymers?

Yes. The product brochure lists paints, coatings, polymers and other solid systems among compatible application categories.

Is MoS2 powder dangerous for transport?

The SDS lists DOT, IMDG and IATA transport status as Not dangerous goods.

Is MoS2 powder non-toxic?

The brochure describes the material as inert, but the SDS classifies it as harmful if inhaled (H332). Please review the full SDS before handling. Do not rely on a standalone non-toxic claim.

Can I order custom particle sizes or bulk packing?

Custom sizes and bulk requirements may be available on request. Contact Lowerfriction with your application details, target particle size, required quantity and packaging needs.

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Molybdenum Disulfide (MoS2) Powder, 1.5 Micron

Product # MK-MoS2-15Molybdenum Disulfide PowderMoS2, +98.5% Pure, APS: ~ 1.5 micron (Superfine Grade) All prices are in US Dollar. This is Non-Hazardous product. Please select only Non-Hazardous shipping options on online order form

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Molybdenum Disulfide (MoS2) Powder, 4.5 Micron

Product # MK-MoS2-45Molybdenum Disulfide PowderMoS2, +98.5% Pure, APS: ~ 4.5 micron (Technical fine Grade) All prices are in US Dollar. This is Non-Hazardous product. Please select only Non-Hazardous shipping options on online order form

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Molybdenum Disulfide (MoS2) Powder, 12.5 Micron

Product # MK-MoS2-125Molybdenum Disulfide PowderMoS2, +98.5% Pure, APS: ~ 12.5 micron (Technical Grade) All prices are in US Dollar. This is Non-Hazardous product. Please select only Non-Hazardous shipping options on online order form

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sku: MK-MoS2-15

Molybdenum Disulfide (MoS2) Powder, 1.5 Micron

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sku: MK-MoS2-45

Molybdenum Disulfide (MoS2) Powder, 4.5 Micron

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sku: MK-MoS2-125

Molybdenum Disulfide (MoS2) Powder, 12.5 Micron

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sku: MK-MoS2-15

Molybdenum Disulfide (MoS2) Powder, 1.5 Micron

Lowerfriction Lubricants

sku: MK-MoS2-45

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Lowerfriction Lubricants

sku: MK-MoS2-125

Molybdenum Disulfide (MoS2) Powder, 12.5 Micron