
Ester base oils

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View our ester base oilsWhat properties can ester base oils offer formulated lubricants?
- Biodegradability
- Low toxicity
- Reduced friction
- Reduced wear, high temperature stability
- Low temperature flowability
- Low volatility
- Clean burn properties
- High viscosity index
- Reduced flammability
- Excellent solvency properties.
Esters have been components in the formulation of lubricants for many years and are the preferred base oil in many severe applications. The percentage of ester oil used can vary anywhere from 1 to 99% depending upon the desired properties and the type of ester employed.
What types of esters do we offer?
As a world leader in the supply of environmentally acceptable base oils, our ester product range includes;
- Complex
- Mono
- Petrochemical
- Trimellitate
- Self-emulsifying
- Saturated and unsaturated esters.
These esters are individually suited to challenges that can arise in industrial, marine, aviation and automotive applications.

How can I formulate environmentally acceptable lubricants (EALs) with esters?

European Ecolabel (LuSC list)
Whilst lubricants must comply with strict environmental criteria to be classed as Ecolabel compliant, they must also meet minimum technical performance standards.
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Priolube™ 3970
Priolube 3970 is a low viscosity, oxidatively stable, low deposit forming polyol ester. It is a high performing lubricant and as it is a polyol ester it therefore has excellent oxidative stability and...
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Priolube™ 3967
Priolube 3967 is a long chain unsaturated fatty acid ester, suitable for use as a synthetic base fluid in a range of applications.
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Priolube™ 3987
Priolube 3987 is an ISO 150 oxidatively stable, biodegradable and hydrolytically stable ester, suitable for use in a wide range of automotive and industrial applications. It is also OSPAR Compliant...
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Priolube™ 1938
Priolube 1938 is a high oxidatively stable, low volatility, hydrolytically stable ester providing enhanced lubrication performance.
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Priolube™ 1973
Priolube 1973 is an ISO 46, oxidatively stable, biodegradable and hydrolytically stable ester, suitable for use in a wide range of automotive and industrial applications. It is European Ecolabel...
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Priolube™ 3958
Priolube 3958 is a high-performing, low viscosity, synthetic lubricant base fluid and additive for automotive gear oil and transmission fluid applications.
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