BK®-886B is an organoclay (tetraallkyl ammonium bentonite) for solvent-based systems of low to medium polarity.
1. Advantages:
¡î High gelling efficiency over low to medium polarity organic liquids.
¡î Ideal thixotropy ,anti-sagging,anti-sediment property.
¡î Imparts particle suspension, preventing hard settling of pigment and fillers.
¡î Exerts strong film reinforce action in organic binder systems.
¡î Good dispersion performance.
¡î Upgrade version of BK-886.
2. Typical Properties:
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Color
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Appearance
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Density
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Moisture
(@105¡æ,2hrs)
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Fineness through 200 mesh
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Loss on Ignition
( @1000¡æ )
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White
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Free Flowing Powder
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1.65g/cm3
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≤3.5%
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≥98%
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≤35%
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3. Typical Applications:
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¡ñAlkyd paint
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¡ñInks
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¡ñPolyester paint
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¡ñLubricating grease
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¡ñWooden paint
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¡ñCosmetics
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¡ñVarnish
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|
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¡ñPolyester paint
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|
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¡ñRoad paint
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|
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¡ñSilica paint
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4. Incorportions:
BK®-886B 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%-50% by weight of BK®-886B.
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®-886B 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.
6. International Countertypes:
Bentone®38, Claytone®40, Tixogel®VP-A,Perchem®44,Bengel®434