Grease is often called "semi-solid lubricant". It is composed of three parts: base oil + thickener + additives.
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1. Base Oil
Accounts for 70-90% of the total grease weight.
Determines the grease's lubricity, viscosity, operating temperature range and other properties.
Common base oils: Mineral oil (most common, inexpensive and stable), synthetic oils (suitable for high and low temperatures or special operating conditions).
2. Thickener
Accounts for 5-20% of the total grease weight.
Key ingredient in the grease's "paste-like structure".
Common thickeners: Metal soap (most commonly used), complex soap (high-temperature resistance, good mechanical stability), inorganic thickener, and organic thickener (commonly used in high-end grease).
3. Additive
Accounts for 1-10% of the total grease weight.
Used to improve the overall performance of grease.
Common additives: Antioxidant (prevent oil oxidation and deterioration), rust inhibitor (prevent metal corrosion), extreme pressure agent (withstand high loads), antiwear agent, pour point depressant, adhesion agent, etc.

Grease Production Process
