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  2. Silicone grease - Wikipedia

    en.wikipedia.org/wiki/Silicone_grease

    Silicone grease, sometimes called dielectric grease, is a waterproof grease made by combining a silicone oil with a thickener. Most commonly, the silicone oil is polydimethylsiloxane (PDMS) and the thickener is amorphous fumed silica. Using this formulation, silicone grease is a translucent white viscous paste, with exact properties dependent ...

  3. Dry lubricant - Wikipedia

    en.wikipedia.org/wiki/Dry_lubricant

    AF coatings are applied where fretting and galling is a problem (such as splines, universal joints and keyed bearings), where operating pressures exceed the load-bearing capacities of ordinary oils and greases, where smooth running in is desired (piston, camshaft), where clean operation is desired (AF coatings will not collect dirt and debris ...

  4. Grease (lubricant) - Wikipedia

    en.wikipedia.org/wiki/Grease_(lubricant)

    A true grease consists of an oil or other fluid lubricant that is mixed with a thickener, typically a soap, to form a solid or semisolid. [1] Greases are usually shear-thinning or pseudo-plastic fluids, which means that the viscosity of the fluid is reduced under shear stress.

  5. Vacuum grease - Wikipedia

    en.wikipedia.org/wiki/Vacuum_grease

    Vacuum grease is a lubricant with low volatility and is used for applications in low pressure environments. Lubricants with higher volatility would evaporate, causing two problems: Lubricants with higher volatility would evaporate, causing two problems:

  6. NLGI consistency number - Wikipedia

    en.wikipedia.org/wiki/NLGI_consistency_number

    The test grease is inserted into the container and the plunger is stroked 60 times while the test apparatus and grease are maintained at a temperature of 25 °C. Once worked, the grease is placed in a penetration test apparatus. This apparatus consists of a container, a specially-configured cone and a dial indicator. The container is filled ...

  7. 12 Best Waterproof Foundations That Won't Melt on Even the ...

    www.aol.com/lifestyle/12-best-waterproof...

    Makeup artist and dermatologist-approved picks for the 12 best waterproof foundations that stay put. Plus, shop a few Elle editor-approved formulas.