BK-881__Rheological Additive, Activated Clay, Bentonite Jingyi Chemical

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Hangzhou Jingyi Chemical Co.,Ltd
Tel: 0086-571-63806068,63711876,63665132
Fax: 0086-571-63751569,63806098
E-mail: Bentonite@organoclays.com
ADD: Room A2001/2002,Building 4, No.4398, Science&Technology Road, Lin'an District, Hangzhou City, Zhejiang Province, China

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BK-881

Products Specifications:

BK^®-881 is an organoclay (tetraallkyl ammonium bentonite) for solvent-based systems of low to medium polarity.

1. Advantages:

☆ Good gelling efficiency over low to medium polarity organic liquids.
☆ Ideal thixotropy property and anti-sediment property.
☆ Good viscosity and thickening property over a wide temperature range.
☆ Imparts particle suspension, preventing hard settling of pigment and fillers.
☆ Exerts strong film reinforce action in organic binder systems.

2. Typical Properties:

Color	Appearance	Density	Moisture (@105℃,2hrs)	Fineness through 200 mesh	Loss on Ignition ( @1000℃ )
Light Yellow	Free Flowing Powder	1.7g/cm³	≤3.5%	≥98%	≤35%

3. Typical Applications:

●Acrylic paint	●Primer paint
●Anti-corrosion paint	●Road paint
●Baking paint	●Industrial paint
●Sealant	●Waster water treatment

4. Incorportions:
BK^®-881 belongs to the conventional type of organoclay group, which requires mechanical energy, shear forces applied with a goods dispersion equipment, and a chemical (polar) activator to reach the proper level of delamination of
the organoclay platelet stacks.
Polar Activator: Dosage of polar activator ( such as propylene carbonate, 95%ethanol , acetone or 95% methanol) is 30%-60% by weight of BK^®-881.
It is always recommended to determine the proper level of addition by experiment. Either defect or excess of chemical activator would result
in poorer viscosity development.

5. Recommended Levels:
The amount of BK^®-881 rheological additive required depends upon the type
of organic system and the degree of thickening or other properties desired. Addition levels are typically between 0.2%-2.0% based on the total
formulation weight.

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