organoclay (tetraallkyl ammonium bentonite) CP-250A

Organoclay tetraallkyl ammonium bentonite

Organoclay (tetraallkyl ammonium bentonite) CP-250A

Organoclay (tetraallkyl ammonium bentonite) CP-250A is a kind of purified and modified organoclay rheological additive, designed especially for use in Grease based on synthetic oils such as vegetable oil, polyester oil. It has high gelling efficiency, fine thixotropy and perfect anti-settling.

what is bentonite grease
what is bentonite grease


Composition                      Organic derivative of a montmorillonite clay

Appearance                       Fine powder, light yellow

Moisture content (105℃,2hr)         ≤3.5%

Loss on ignition (1000℃)            34%-36%

Bulk density                       0.42g/cm3

Fineness (<74μm, %)               ≥98%


High efficiency

The gel is of light colour and high clarity

Easy to use, no need to pregel

Eliminate polar activator

Consistent development of rheology

Can be used to post correct


Bentonite grease CP-250A is used in the following applications:

Grease Lubricant(the base oil is synthetic oil such as middle-high viscosity petroleum, mineral oil, diester oil, polyester oil, vegetable oil etc.)

Wood coating 

Using of bentonite grease

When it is used in Grease Lubricant, polar activator is needed. Polar activator is acetone/water(95/5). The dosage of activator is 20%-30% of the weight of CP-250A. And also high shear can promote the dispersing of CP-250A.

Adding procedure as follows:

If condition permits, heat the base oil to 60~70℃

Add CP-250A while stirring, addition level is 7%-10% of the total formulation. Stir  5~10minutes

Add polar activator, addition level is 2%-3% of the total formulation. Then add other additives, stir 25~30minutes.

Use pump to help it pass colloid grinding and homogenizer.

Deair, filtrate, pack.Note: With High-speed dispersant of grinding machine, and properly prolong the dispersing time, better gelatin performance can be reached.

The Lubricanting grease which uses organoclay as thickener will own high dropping point, thus can be used under high temperature and presents good impermeability and water resistance.


Kraft paper bag with PE liner or multi-wall paper sacks or customized. 25kg/bag or 22.68kg/bag or customized


Bentonite grease has a shelf life of 2 years, and should be stored in ventilated cool and dry place.


The information on use is based on data which are believed reliable, but any recommendation or suggestion made are without guarantee or warranty, since the conditions of use are outside our control.

All bentonite grease are sold on the conditions that purchasers shall make their own tests to determine the suitability of such products for their purpose and that all risks are assumed by user. We disclaim any responsibility for damages resulting from careless or improper handling or use. Nothing herein is to be taken as permission, inducement or recommendation to practice any patented invention without a license.

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