Calcium Grease: Composition, Formulations, and Applications - ÖleZol

Calcium Soap Greases:

Tallow (animal fat) based calcium greases were the earliest lubricants developed during . As a result, calcium greases were relatively inexpensive to manufacture and are still in use since then.[3]. While there are three types of calcium greases but anhydrous calcium grease is the most economical multipurpose grease. Besides, the other two greases are hydrated calcium and calcium complex. In addition to multipurpose anhydrous calcium, hydrated calcium or lime grease is one of the most economical greases for general-purpose wet applications.

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Three common types of calcium greases:

• Hydrated calcium grease (lime grease)
• Anhydrous calcium Grease
• Calcium complex  

Hydrated calcium soap grease

Hydrated calcium grease has mineral oil, animal fat (tallow), and lime in its composition. Grease has a 90°C (194°F) dropping point, whereas the useable temperature is around 65°C (149°F). Still being manufactured on a large scale, it is one of the most economical greases.  Due to the chemical reaction of hydrated lime with tallow, lime greases need water to retain their grease structure. A small amount of water acts as a stabilizer. Lime greases have limited use because of lower useable temperatures and the need for water to stay as grease.

Uses (applications) of hydrated calcium grease

• Machines in a wet environment
• Agricultural and farming machinery exposed to water
• Water pumps
• Non-bearing axles
• Chassis lubrication

Advantages of hydrated calcium (lime) grease

• Smooth structure
• Good low-temperature properties (depending upon the base oil)
• Excellent water resistance (don’t form an emulsion with water)
• Good adhesion (adhere to surface applications)
• Pumpable

Disadvantages of hydrated calcium lime grease

• Low drop point 90-100°C (195-210°F)
• The maximum working temperature is 65°C (149°F).
• Not suitable for high-speed application (bearings)
• Grease structure breaks without water
• Poor storage stability
• Poor shear/mechanical stability

Anhydrous calcium soap grease 

Anhydrous calcium grease is an economical multipurpose grease. Calcium 12-Hydroxy Stearate, or anhydrous calcium grease has 12HSA (12-hydroxystearic acid) instead of animal fat (tallow/stearic acid) as a thickener. As a result, 12HSA eliminates the need for water in calcium greases. In the same way, it is also possible to use blend of 12HSA and HCO (hydrogenated castor oil) or stearic acid with an 85:15 ratio. The grease has a 150°C (300°F) dropping point, good thermal stability, excellent water resistance, and good mechanical stability. Therefore, it is the best multipurpose grease for applications where equipment running at the ambient temperature or up to 90°C (194°F) max. Theoretically, it is okay for up to 110°C (230°F) because of 150°C (300°F) dropping point, but as layman selection criteria use it for non-powered machinery.

Calcium Grease Uses

Calcium Grease has a general use. It is a good  water resistance and corrosion protection product.

Altogether, it can be used in different industries including marine industry, oil and gas fields, mining, paper manufacturing, agricultural and automotive industries. But the main use of this lubricant is in transportation industries. 

It’s better to use this type of grease in regions with low temperatures, because high temperature can affect its original structure and change its characteristics.

Difference Between Calcium Grease and Lithium Grease

 Calcium greases have very little resistance to temperature. This type of grease is used at 80 ° C and lower temperatures. Lithium greases are more heat resistant and can be used at 150 ° C. 

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Calcium Grease doesn’t need a high amount of additives while in lithium grease, in addition to the basic additive, sometimes additional additives should be used to improve its performance.

The Advantages of Lubrication with Grease

• The cost of opening and closing some parts of the industrial machines is very high and it has complex operations. When we lubricate a piece of equipment with grease, this material remains in that place for a long time. It shows Grease has a high durability.
• Grease can be used easily without using any special equipment. 
• It extends the shelf life of different parts of the equipment.
• Another advantage to using grease in different equipment, such as ball bearings, is that the semisolid state of the grease prevents dust from entering the equipment.

Calcium Grease Specification

Generally, there exists different tests that can be done on calcium grease to evaluate its quality. But the most important tests are the Unworked Penetration test and N.L.G.I .  

In the table below, we have clarified the Infinity Galaxy Grease specification:

Grease SpecificationNo.Test DescriptionUnitRange1Free Acid%wt0-0.852Penetration
a. Unworked
b. Worked 0.1 mm
 220-242

3Dropping PointDegree Celsius80-3004Flash PointDegree Celsius170-2355N.L.G.I No.–000-6

Calcium Grease Packing

The suitable packing for this type of product is steel drum. Each drum has the capacity of 180 KG and the weight of the drum is 16 KG.

Generally, 80 drums of calcium grease can fill a 20’container.

Infinity Galaxy, the International Calcium Grease Supplier 

We are proud that in addition to supplying bitumen and petrochemical products worldwide, we supply calcium grease to different regions of the world. 

Since Asian countries, especially India, are the largest consumers of calcium grease, Infinity Galaxy as an international calcium grease exporter is ready to cooperate with these countries to supply the high quality calcium grease with the reasonable price.