Silicone Grease

Silicone grease is a lubricant and sealant that is based on silicone oil. It is a versatile substance with various applications due to its unique properties. Here are some key characteristics and uses of silicone grease:
Silicone Grease

What is Silicone Grease?

Silicone grease, also known as chassis grease or bearing grease, is a type of lubricant used in automotive applications to reduce friction and provide long-lasting protection for various components. It is typically formulated to withstand high temperatures, extreme pressures, and heavy loads encountered in automotive systems.

What is Silicone grease made of?

Silicone grease is typically composed of a base oil, a thickening agent, and various additives. The base oil, which can be mineral or synthetic oil, serves as the primary lubricating component. A thickening agent, often a metallic soap such as lithium, calcium, or aluminum soap, is added to give the grease its Silicone or semi-solid consistency.

What is the viscosity of Silicone automotive grease?

Silicone grease does not have a specific viscosity rating like liquid lubricants because it is a non-Newtonian substance. Instead of measuring viscosity in terms of a single value, Silicone grease is characterized by its NLGI (National Lubricating Grease Institute) grade. The NLGI grade indicates the consistency or hardness of the grease.

What is the thickener in Silicone grease?

The thickener in solid grease is typically a metallic soap. Metallic soaps are compounds formed by reacting a metal hydroxide with a fatty acid. The most commonly used metallic soaps as thickeners in automotive greases are lithium, calcium, and aluminum soaps. 

Why does grease turn Silicone?

Grease turns Silicone due to the presence of a thickening agent, typically a metallic soap, which is added during the manufacturing process. The thickening agent forms a three-dimensional network structure within the grease, trapping the base oil and other additives. This network structure gives the grease its solid or Silicone consistency.

Silicone grease


Is Silicone Grease Flammable?

Silicone grease is generally not considered flammable under normal conditions. However, it is important to note that automotive grease contains a base oil, which can have different flammability properties depending on its composition (mineral oil or synthetic oil). The base oil in grease typically has a higher flash point (the minimum temperature at which it can ignite) compared to liquid fuels, making it less prone to catching fire.

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