Molybdenum Disulfide (MoS₂) solid lubricant additives for grease, oil, and coating formulation. Sub-micron powder and pre-dispersed concentrates engineered for EP, AW, and friction-reduction performance.
Molybdenum Disulfide (MoS₂, CAS 1317-33-5) is one of the most widely used solid lubricants in industrial applications. Its hexagonal lamellar crystal structure allows atomic planes to slide freely under shear stress, producing low friction and high load-bearing capacity.
In tribological contact, MoS₂ particles form an adherent tribofilm on metal surfaces. This film provides continuous extreme pressure (EP) and anti-wear (AW) protection, even when the primary lubricant film is insufficient.
Powderful Solutions supplies MoS₂ in two engineered forms:
Sub-micron MoS₂ powder, D50 = 0.6 μm, 99%+ purity. For direct blending into NLGI greases, dry film coatings, and polymer composites.
50% MoS₂ in PAO-6. Surface-modified and stabilized against agglomeration. Ready-to-blend concentrate for gear oils and hydraulic fluids.
COF 0.05–0.10 under dry sliding. In EP greases, MoS₂ can reduce boundary-layer friction by 25–50% versus the base grease.
Weld point greater than 250,000 PSI (ASTM D2783). Significant load-wear index improvement at 1–5 wt% treat rates.
4-Ball wear scar reduction of 35–60% (ASTM D4172) at typical 1–3 wt% treat rates in mineral or synthetic base oils.
Effective from −180°C to 350°C in air. In inert or vacuum environments, MoS₂ can remain stable at significantly higher temperatures.
Excellent adhesion to steel, titanium, and aluminum surfaces. The tribofilm regenerates continuously under sliding contact from fresh particle supply in the lubricant.
MoS₂ delivers strong EP and AW performance at a lower cost per gram than WS₂, making it a common choice for cost-sensitive industrial applications.
| Property | MoS₂ | WS₂ | PTFE | Graphite |
|---|---|---|---|---|
| COF (dry) | 0.05–0.10 | 0.03 | 0.04–0.10 | 0.10–0.20 |
| Max temp. in air | 350°C | 650°C | 260°C | 450°C |
| Load capacity | 250,000 PSI | 300,000+ PSI | 30,000 PSI | 80,000 PSI |
| Cost | Low | Higher | Medium | Low |
| PFAS-free | ✓ | ✓ | ✗ | ✓ |
| Humidity resistance | Limited | Excellent | Excellent | Requires moisture |
Sub-micron MoS₂ powder for direct blending into NLGI greases, dry film coating formulations, polymer composites, and metalworking compounds.
View full specifications →Pre-dispersed, surface-modified MoS₂ concentrate ready to blend into gear oils, hydraulic fluids, and metalworking fluids. Stabilized against agglomeration and sedimentation.
View full specifications →Industry-standard additive for NLGI 1–3 greases, open gear greases, mining equipment greases, and pin-and-bushing joint greases. Treat rates of 3–8 wt% can support severe-duty EP performance.
Effective EP additive for worm gear, spiral bevel, and hypoid gear oil formulations. Provides tribofilm protection under high sliding velocity and high contact pressure.
Anti-seize and thread compound formulations for fasteners, flanges, and drill-string connections. Helps prevent galling and cold welding under extreme torque.
Stamping, deep drawing, and forging lubricants where extreme pressure resistance and die-adhesion control are required.
Dry film lubricant for spacecraft mechanisms, hinges, and deployment systems operating in vacuum. Can be applied as a bonded coating using Solidex M010.
Can be sprayed or burnished onto metal surfaces to provide a bonded lubricant film for sliding contacts where liquid lubrication is impractical.
Our technical team works directly with lubricant formulators to optimize particle size, concentration, and carrier system for each application.