An Overview of Grease Water Resistance

Many grease-lubricated components operate in wet environments, making them susceptible to water contamination which degrades their performance, functionality, and useful life. Hence, selecting a grease with appropriate water-resistant properties can have a significant influence on the life of the ma...

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Bibliographic Details
Published in:Lubricants 2020-09, Vol.8 (9), p.86
Main Authors: Gurt, Alan, Khonsari, Michael
Format: Article
Language:English
Subjects:
Bearings
Corrosion
grease contamination
Industry standards
Lubricants & lubrication
Oxidation
Performance degradation
Prevention
Researchers
Rheology
Standardized tests
water contamination
Water resistance
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Summary:Many grease-lubricated components operate in wet environments, making them susceptible to water contamination which degrades their performance, functionality, and useful life. Hence, selecting a grease with appropriate water-resistant properties can have a significant influence on the life of the machine. While industry standards attempt to evaluate a grease’s water resistance, research indicates that a more thorough understanding of water resistance is needed to properly match a grease to an application. This paper provides an overview of the interaction of grease and water, covers existing water-resistance standards, discusses the results of available experiments aiming to describe the effects of water on grease, demonstrates the need for more meaningful standards, and suggests additional measures for characterizing a grease’s water resistance.
ISSN:2075-4442
2075-4442
DOI:10.3390/lubricants8090086