BK-388__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: NO.68 Huaqiao Road, Lin'an City, Zhejiang Province, China PC:311300

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BK-388

Products Specifications:

BK^®-388 is an organoclay (tetraallkyl ammonium bentonite) for solvent-based systems of low,medium and high polarity.

1. Advantages:

☆ High gelling efficiency over low, medium and high polarity organic liquids.
☆ Produce reproducible thixotropic consistency over a wide temperature range.
☆ High viscosity and excellent 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.
☆ High purity:high percentage of montmorillonite,free cristobalite <1%.
☆ High efficiency:save 30%dosage compared with ordinary grades.
☆ Good dispersion:self-activated in medium/high polar system.Its fineness can reach 10μ or even less.

2. Typical Properties:

Color	Appearance	Density	Moisture (@105℃,2hrs)	Fineness through 200 mesh	Loss on Ignition ( @1000℃ )
Light Yellow	Free Flowing Powder	1.85g/cm³	≤3.5%	≥99%	≤45%

3. Typical Applications:

●Acrylic paint	●Solvent epoxy paint
●Alkyd paint	●Wooden paint
●Baking paint	●Zinc-rich paint
●Decorative paint	●Inks(mineral oil,vegetable oil)
●Industrial paint	●Varnish
●Marine paint	●Lubricating grease
●Non-solvent epoxy paint	●Cosmetics
●Polyester paint

4.      Incorporations:

BK^®-388 belongs to the unconventional type of organoclays group, being an easy-to-disperse, self-activated organoclay, BK^®-388 does not require a chemical (polar) activator to reach the proper level of delamination of the organoclay platelet stacks.
BK^®-388 can be added at any point in the manufacturing process. If addition is made with polar activator or after grinding,better performance can be expected.
Polar Activator: Dosage of polar activator( such as propylene carbonate, 95%ethanol , acetone or 95% methanol) is 20%-30% by weight of BK^®-388.
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^®-388 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%-0.8% based on the total formulation weight.

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