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:
3. Typical Applications:
|Fineness through 200 mesh||Loss on Ignition|
( @1000ºC )
|Light Yellow||Free Flowing Powder||1.7g/cm3||≤3.5%||≥99%||≤38%|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.
|Acrylic paint||Solvent epoxy paint|
|Alkyd paint||Inks(mineral oil)|
|Baking paint||Putties and sealant|
|Chlorinated rubber paint||Varnish|
|None solvent epoxy paint||Nitro lacquer|
|Marine paint||Lubricating grease|
|Silica paint|| |
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.
5. Recommended Levels:
6. International Countertypes: Bentone®SD-2, Claytone®HY,Claytone®APA