In Roman times the first 'greases' were animal fats used to lubricate the wheels of their chariots, so this idea has been around a while.
In simple terms a grease is a thickened oil, the thickener is there to act as a sponge and hold the oil in place. Under pressure the 'sponge' releases the oil film to lubricate the contacts.
Greases are very simply a thickened oil. The thickener is like a sponge and holds the oil in a matrix which under pressure releases the oil to lubricate the surfaces. A grease can be based upon a mineral or synthetic oil, thickened with a metallic soap or sometimes an absorbent particle, clay, silica or PTFE and additives can be either within the base oil or also held within the matrix. Solid additives are also sometimes included to reinforce the boundary lubrication properties of the material under extreme pressure.
A Dry Film Lubricant is either a solid lubricant that is added to a coating which is bonded to the surface like a ‘low friction paint’ or a layer of un-bonded solid lubricant is applied between surfaces to act as a sacrificial layer or film.Aerosol or spray lubricants are simply one of the above oils, greases or dry film lubricants (or a mixture in some cases), suspended in a carrier fluid or solvent and with the addition of a propellant to push it out of the can. Depending upon the nozzle and pressure sometimes the product is a fine atomised mist and sometimes it is a stream of fluid.
Will this lubricant cause stress cracking of my components? A significant portion of lubrication failures can be attributed to mixing without taking into consideration compatibility.
The plastic/ lubricant compatibility chart on the download tab of this page should be used as a guide to determine compatibility. Please contact is for more detailed advice or a free site visit to review your application issues.
We can also offer compatibility testing as part of our service and have extensive laboratory facilities to enable analysis of specific combinations of materials.