BK®-883B is an organoclay (tetraallkyl ammonium bentonite) for solvent-based systems of low,medium and high polarity.
1. Advantages:
¡î High gelling efficiency over low, medium and high polarity organic liquids, especially in 200#solovent oil, coal tar, aromatic compounds.
¡î Produce reproducible thixotropic consistency over a wide temperature range.
¡î High viscosity and excellent thickening property over a wide temperature range.
¡î Imparts particle suspension, preventing hard settling of pigment and fillers.
¡î Exerts strong film reinforce action in organic binder systems.
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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|
Light Yellow
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Free Flowing Powder
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1.7g/cm3
|
≤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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¡ñZinc-rich paint
|
|
¡ñAnti-corrosion paint
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¡ñInks(mineral oil)
|
|
¡ñBituminous paint
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¡ñInks(Nitro)
|
|
¡ñChlorinated rubber paint
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¡ñAdhesive
|
|
¡ñMarine paint
|
¡ñPutties and sealant
|
|
¡ñNone solvent epoxy paint
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¡ñLubricating grease
|
|
¡ñPrimer paint
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¡ñOil drilling mud
|
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¡ñRoad paint
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¡ñWaster water treatment
|
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¡ñSilica paint
|
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4. Incorporations:
BK®-883B 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 40%-60% by weight of BK®-883B.
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®-883B 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®52, Tixogel® VP,Claytone®HT.