BK®-886 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.
2. Typical Properties:
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Color
|
Appearance
|
Density
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Moisture
(@105¡æ,2hrs)
|
Fineness through 200 mesh
|
Loss on Ignition
( @1000¡æ )
|
|
Light
White
|
Free Flowing Powder
|
1.67g/cm3
|
≤3.5%
|
≥98%
|
≤35%
|
3. Typical Applications:
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¡ñAcrylic paint
|
¡ñSolvent epoxy paint
|
|
¡ñAlkyd paint
|
¡ñZinc-rich paint
|
|
¡ñBaking paint
|
¡ñNitro lacquer
|
|
¡ñFoundry paint
|
¡ñAdhesive
|
|
¡ñPolyester paint
|
¡ñLubricating grease
|
|
¡ñRoad paint
|
¡ñCosmetics
|
|
¡ñSilica paint
|
¡ñInks
|
4. Incorportions:
BK®-886 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®-886.
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®-886 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