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Ester Oils

An Ester Oil is a synthetic base oil that has been chemically synthesised. Esters are derived from carboxylic acids. A carboxylic acid contains the -COOH group, and in an ester the hydrogen in this group is replaced by a hydrocarbon group of some kind. This could be an alkyl group like methyl or ethyl, or one containing a benzene ring like phenyl.

There are many types of Esters including polyolesters, complex esters and trimellites. Esters are often used in jet engines lubrication due to their low temperature flowability with clean, high temperature capacity.

Esters are often used in combination with PAO's in fully synthetic motor oils - ester content varies from 5-25% depending on the ester and the desired properties.

The high performance properties and custom design versatility of esters is ideally suited to problem solving in the industrial arena. They are used widely in reciprocating air compressors and
high temperature industrial oven chain lubricant.

These oils are available in a wide range of viscosities and are more generally used under high temperatures (maximum from 180 to 230°C).

Category: Oils & Fluids
chain lubrication extends chain life