A composition and process for reducing the coefficient of friction on the surface of formed metal structures, such as aluminum cans, by lubricating the surface with a blend of a polyethylene glycol ester with a fluoride compound.

An engine oil additive in the form of a dry lubricant powder having approximately equal parts of Dupont DLX-6000, an experimental grade fluorocarbon resin micropowder having particle size less than a micron and having a recommended temperature range of about 480 degrees F. and a Colt Industries Plastomer Products Division Plastolon P-550 Teflon powder having a micron to submicron size and having a recommended operation maximum range of from about 500 to about 600 degrees F. and about 1-2% titanium dioxide is added to an engine oil by draining used engine oil, renewing filtration system, pouring one pint of new engine oil into filler opening, mixing second pint with the prescribed ratio of Power Powder and pouring into the engine filler opening, filling with additional oil needed to bring engine oil capacity to full, and immediately operating the engine through its normal driving manner for approximately 30 minutes. The fluid lubricants carry the powder components in their powdered form to friction bearing surfaces where powder is squeezed from the lubricant to impregnate the porous surfaces. The dry lubricant rapidly increases in temperature as it contacts the porous friction surfaces and adheres to the surfaces. The friction smooths the lubricant over the surfaces, increasing the slip characteristics of the load bearing surfaces and reducing vibration characteristics that would otherwise tend to disrupt fluid lubricant barriers.

An oil additive for repairing abrasions and lubricating engine bearing surfaces is provided. A mixture of granular granulated alloy material and granular polytetrafluoroethylene (PTFE) are added to the engine or engine oil, with normal engine operations peening and burnishing the granulated metal alloy material granules to the surfaces to thereby form a matrix which entraps the PTFE granules. Continued operation of the engine gradually wears away particles of the matrix to uncover the embedded PTFE granules for slow release of granules. In one embodiment, about 1% to 2% by composition of the mixture is granules of titanium dioxide for preparing the bearing surfaces and enhancing additive performance. The granules of the mixture are micron to submicron in size and can adhere readily to surface abrasions and smooth surfaces.

In order to improve the wear resistance properties of lubricants, at least one compound of the following formula is incorporated therein: ##STR1## Rf is a perfluorinated radical, a=0 to 10, b=0 or 1 (if a=o and c=1), c=1 to 4 (2 if a.noteq.0), m=0 or 1, n=0 or 1, X is an aryl radical, Y is a 2-hydroxy-1-phenylethyl group, R.sub.1 and R'.sub.1 each represent a hydrogen atom or an alkyl, cycloalkyl or aryl radical, R.sub.2 and R'.sub.2 each represent a hydrogen atom or an acyl residue, at least one of the symbols R.sub.1 and R.sub.2 being other than H or CH.sub.3 if the sum a+m+n=0.

Dry film lubricant coatings are provided by using a silicone resin binder, either as an aqueous emulsion or in a solvent-based system, to fix an alkaline earth metal fluoride to a substrate. The compositions used to apply the coatings may also include relatively minor amounts of xylene, ammonium benzoate, a wetting agent, and/or a porosity-inducing agent--although none of those additives remains in the cured coating. Multi-layer dry film lubricant coatings are also disclosed, with the multi-layer coating having a basecoat layer as described above, and a topcoat layer made of a layer-lattice solid such as graphite or molybdenum disulfide, and a silicone resin, aluminum phosphate or an alkali metal silicate binder.