What is the difference between molybdenum disulfide grease and graphite grease?

February 08, 2024

I believe many friends know that the most obvious feature of molybdenum disulfide grease is that the appearance is black, and it cannot be adjusted to other colors, because it is a lithium-based grease with additives such as molybdenum disulfide MoS2; but Not that black grease contains molybdenum disulfide, but it may also be graphite-containing grease; so many friends will confuse molybdenum disulfide grease with graphite grease. So what is the difference between these two greases? The following is an expert from Youbao:

Molybdenum disulfide grease:

Molybdenum disulfide grease is a cost-effective high-temperature and low-temperature synthetic grease made of low-viscosity PAO and molybdenum disulfide. It has the effect of anti-wear extreme pressure, can bear heavy load, and also has good thermal stability and lubrication. It has good compatibility with most plastics, and effectively reduces noise from plastic gears, has a long service life; and has low seepage.

Graphite grease:

Graphite grease is a graphite grease made by thickening ester synthetic oil with inorganic thickener and adding ultrafine graphite powder, anti-oxidation and anti-corrosion additives. This ultra-high temperature grease will slowly evaporate base oil when the temperature is above 200 ℃, and graphite will adhere to the lubricating surface to form solid lubrication. It is specially used for the lubrication of high-temperature friction components and bearings under heavy load / impact load or wet / polluting environment. Maximum protection against rust and corrosion.

According to the above description, although molybdenum disulfide grease and graphite grease are the same additives as grease, graphite grease mainly has high temperature performance, while molybdenum disulfide grease has excellent anti-wear and extreme pressure performance, and graphite Grease is not as good as molybdenum disulfide grease in two ways.

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