BK-923 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.☆ Easy of incorporation. No need for polar activator
or making pregel.☆ Consistent in rheology and thixotropy
development.☆ Easy of dispersion with excellent fineness.In
suitable systems, it can reach 5μ or even less.☆ Good
anti-sagging property and anti-sediment property.☆ 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:
ColorAppearanceDensityMoisture(@105ºC,2hrs)Fineness
through 200 meshLoss on Ignition( @1000ºC )Light
YellowFree Flowing Powder1.7g/cm3≤3.5%≥99%≤38%3. Typical
Applications: Acrylic paintSolvent epoxy paintAlkyd
paintInks(mineral oil)Anti-corrosion paintInks(Nitro)Bituminous
paintAdhesiveBaking paintPutties and sealantChlorinated rubber
paintVarnishNone solvent epoxy paintNitro lacquerMarine
paintLubricating greaseSilica paint 4. Incorporations:
BK-923 belongs to the unconventional type of organoclays
group, being an easy-to-disperse, self-activated organoclay,
BK-923 does not require a chemical (polar) activator to reach
the proper level of delamination of the organoclay platelet
stacks. BK-923 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-923 rheology
modifier 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. 6. International Countertypes:
Bentone®SD-2, Claytone®HY,Claytone®APA /* March 10, 2023
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