Tungsten Disulphide (WS2)


Tungsten Disulphide (WS2)

Tungsten Disulphide (WS2) is a dry film lubricant that are typically used where liquid lubricants would not be suitable. Tungsten disulphide forms a crystalline lattice structure and it is the weak sulphur to sulphur bonds that allows the layers to shear and act as the lubricating mechanism.

Tungsten Disulphide coatings can provide low friction, high load bearing, chemical resistance, abrasion resistance, as well as corrosion resistance. A balance of these properties can be produced by varying the ratio of lubricating pigment to binder as well as adjusting the binder type and cure temperature. Tungsten Disulphide would be used in preference to Molybdenum Disulphide (MoS2), where the application experiences higher loading and higher temperatures up to 500°C.

Tungsten disulphide has most famously been used in NASA projects, where low friction properties were required in extreme conditions.

For advanced dry film coatings see Apticote 200.

Materials Processed:

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

Spray booth size: Gloucester

1m x 1.5m x 1.2m

Spray booth size: Cardiff

1m x 1.5m x 1m

Spray booth size: Poland

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.


Blue icon showing a rectangle sliding over another indicating low friction

Low Friction

Heavy weight icon

High Load bearing

Flame in a circle icon

High temperature (up to 500°C)

Corrosion icon - acid spilling on to rectangle

Corrosion resistance

Chemical bottles icon

Chemical resistance

Anti-galling icon


Two rectangle vibrating together - fretting icon



Piston rings




Tungsten Disulphide (WS2)