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Synthetic grease is a lubricant made from synthetic oils combined with thickening agents. These thickeners can be standard soaps or synthetic bases, and sometimes a mix of synthetic thickeners in petroleum oils. Silicones are a type of synthetic grease where both the base and oil are synthetic.

Synthetic greases offer advantages such as usability over a wide temperature range and come in both water-soluble and water-resistant forms. They are also compatible with natural and other rubbers without causing softening.12

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