TecnolubeSeal | Molybdenum Disulfide
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Molybdenum Disulfide

Bisolfuro di molibdeno Molybdenum disulfide is a chemical compound that looks like dark gray mineral, metallic sheen and feels soft and oily. It is the most solid lubricant used for the following reasons:

  1. It is able to withstand high loads (EP: extreme pressure) due to the presence of sulfur which chemically react with the metals, preventing the adhesive wear from contact.
  2. It reduces friction from sliding due to its hexagonal lamellar chemical structure.
  3. It can work up to 400°C, even in the presence of air.

It is produced with different particle size from 1 to 100 µm.

Is little used in lubricating oils because hardly dispersible, while it is widely used in greases and dried lacquers. Very important it is to optimize the particle size and concentration to be used in lubricants for the following reasons:

  1. A low particle size promotes the uniform and distribution of the product on the metal surface to be lubricated, but could not adequately separate the roughness present between part and counterpart contact between them; for this reason it is necessary to provide a proportion of particles of large granulometry.
  2. too low a concentration may not be enough to reduce wear, too high a concentration might give compatibility problems with yellow alloys and worsen the stick-slip.

TecnolubeSeal has  a full range of molybdenum disulfide lubricants, below we provide a partial list:

  • Rheolube 380: synthetic grease with molybdenum disulfide ideal for the lubrication of ball screw balls and/or medium and small gears.
  • Fluorocarbongel 880 MS: high viscosity silicone grease with ability to withstand high loads due to the combination of PTFE and molybdenum disulfide.
  • Fluorocarbongel 875 MS: PAO-base grease with molybdenum disulfide ideal for kinematic lifetime lubrication lensesas fifth wheels, gears and/or bearings.
  • Spray Dry Moly: dispersion of molybdenum disulfide capable of forming a molybdenum disulfide “dry paint” free from oils.

Contact the technical service TecnolubeSeal to figure out which product is best suited to you application tecnico@tecnolubeseal.it