Molybdenum Disulphide (MoS2)

DETAILS

Molybdenum Disulphide
(MoS2)

Molybdenum Disulphide (MoS2) is a dry lubricant coating that provides low friction and high load bearing, as well as chemical, abrasion and corrosion resistance.

Molybdenum Disulphide forms a crystalline lattice structure. The bonds between the Molybdenum and sulphur particles are strong, whereas the bonds between the crystalline lattice layers (sulphur to sulphur) are relatively weak. The weak bond allows the layers to shear easily along the shear planes. It’s this shearing mechanism that acts as a lubricating layer between two sliding surfaces.

This is demonstrated by the Crystal structure model below:

Molybdenum dislulphide structure showing strong and weak bonds

Dry film lubricants like Molybdenum Disulphide are used for a number of different reasons. Typically they are used where liquid lubricants cannot function. Liquid lubricants can change their fluid state due to temperature, wear, debris collection or load, which can prevent them from acting in a lubricating manner.

A balance of Molybdenum Disulphide’s DFL properties can be produced by varying the ratio of lubricating pigment to binder, as well as adjusting the binder type and cure temperature. MoS2 coatings are also available in air cured versions and in aerosol form, for local repair and touch-up.

For advanced dry film lubricants solutions see Apticote 200.

Materials Processed:

Nickel Alloys, Carbon Steels, Stainless Steels, Titanium alloys, Aluminium alloys

Tank sizes: Gloucester

1m x 1.5m x 1m

Tank sizes: Cardiff

1m x 1.5m x 1m

Tank sizes: Cardiff

1m x 1.5m x 1m

The tank sizes shown above are approximate sizes only. If you have a larger part then please contact us as we may still be able to help.

Features

Blue icon showing a rectangle sliding over another indicating low friction

Low Coefficient of Friction

Heavy weight icon

High Load bearing

Gear icon with worn edge

Reduces friction and wear

Flame in a circle icon

High temperature (up to 400°C)

Corrosion icon - acid spilling on to rectangle

Corrosion resistance

Chemical bottles icon

Chemical resistance

Anti-galling icon

Anti-Galling

Two rectangle vibrating together - fretting icon

Anti-Fretting

Thermometer with reducing heat arrow

Reduce heat generation

Applications

Rotative run-in applications

Military sliding mechanisms

Actuartors

Pivot pins

Seat belt mechanisms

Subsea connectors – well head, valve block

Molybdenum Disulphide (MoS2)