BK®-922 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 Easy of incorporation. No need for polar activator or making pregel.
¡î Consistent in rheology and thixotropy development.
¡î Easy of dispersion with excellent fineness.
¡î Good anti-sagging property and anti-sediment property.
¡î Can be added at any step,even can be used in post-addition to correct the final viscosity of a certain batch.
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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1.6g/cm3
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≤3.5%
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≥99%
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≤38%
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3. Typical Applications:
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¡ñAcrylic paint
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¡ñSilica paint
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¡ñAlkyd paint
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¡ñInks(mineral oil)
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¡ñAnti-corrosion paint
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¡ñInks(Nitro)
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¡ñChlorinated rubber paint
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¡ñAdhesive
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¡ñNitro lacquer
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¡ñVarnish
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¡ñPrimer paint
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¡ñLubricating grease
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¡ñPolyester paint
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4. Incorporations:
BK®-922 belongs to the unconventional type of organoclays group, being an easy-to-disperse, self-activated organoclay, BK®-922 does not require a chemical (polar) activator to reach the proper level of delamination of the organoclay platelet stacks.
BK®-922 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.
5. Recommended Levels:
The amount of BK®-922 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%-1.5% based on the total formulation weight. For high thixotropy systems or thick film paints, the recommended levels are between 1%-2.7%.
6. International Countertype: Bengel®828