Industrial greases are lubricant of higher initial viscosity than oil, consisting originally of a calcium, sodium or lithium soap jelly emulsified with mineral oil. These are typically used in areas where a continuous supply of oil cannot be retained, such as open bearings or gears.

Grease is a mixture of lubricant and thickener. It is used in a number of applications to reduce friction between surfaces from which oils could leak away or cause damage by dripping, or where lubrication must be assured for extended periods. Many greases are mixtures of mineral oil and soap.

We can define it chemically as a fine dispersion of an oil-insoluble thickening agent - usually soap in a fluid lubricant which is basically a mineral lubricating oil. The soap is made up of fatty acid, or vegetable oil saponified with alkali which can be hydrated lime, caustic soda, lithium hydroxide or aluminum hydroxide. The lubricating oil component is refined base oil-naphthenic, of medium viscosity index, or cylinder oil stock. Structurally grease is a "water-in-oil" emulsion. Its appearance is smooth, mostly translucent, soft or hard.

Graphite, modified clay, asphalt, oxidation and corrosion inhibitors, extreme pressure additives molybdenum disulphide etc. can be used as additives to impart specific properties as required by end application and specific requirements of clients.

Types of greases are:

• Soap based grease
• Non-Soap based grease

Soap based grease
Soap based grease contains organic thickeners. It is formed when the fatty acid or ester (from either animals or vegetables) is mixed with an alkali (such as lithium) and then heated under pressure with agitation. The process of this chemical reaction, which takes place is known as saponification. An important fact about lithium soap is that it doesn't dissolve in water, so you probably won't find it in your home, but you will find its use mainly as aircraft grease. Some examples of soap based grease are lithium, soda, calcium, polyurea, PTFE modified, molybdenum modified and aluminium complex based grease.

Non-Soap based grease
A non-soap based grease consists of inorganic like molybednum disulphide and graphite, as well as organic thickeners. The organic thickeners are considered as non-abrasives, which have high capacity to absorb and "hold" the base oil.

Grease has a wide number of characteristics and features, because of which it is used in a variety of industrial applications. The important properties, which affect the characteristics of grease, are:

• Amount and type of thickener
• Physical characteristics and oil viscosity
• Additives
• Low and high temperature performance

Greases manufactured by our plants are superior in quality and exhibits the following characteristics:

• It reduces friction and wear.
• Provide protection against corrosion.
• Seal bearings from water and other contaminants.
• Resist leakage, dripping and throw-off .
• Resist changes in structure or consistent working during service.
• Maintain mobility and be compatible with seals.
• It repels or tolerate moisture.