What is a grease thickener and what does it do?

A thickener is what makes a grease, a grease. It’s the main difference between a lubricants or oil, and a grease. In common parlance you may have heard of thickeners being referred to as metal soaps - the underlying chemistry is the same as that of regular hand soap, so here we explain what that means and the basics chemistry of how a thickener is made.

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