silicone

is a generic term for a family of relatively inert liquid organosiloxane polymers used as synthetic lubricants; properties include high viscosity index (V.I.), good high temperature oxidation stability, good hydrolytic stability and low volatility. Silicones generally have poor lubricity, however. Applications include brake fluids, electric motors, oven and kiln preheater fans, automotive fans, plastic bearings, and electrical insulating fluids.

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