High Purity Organoclay BK-883, Rheological Additives for Paints & Coatings

BK¬-883 is an organoclay (tetraallkyl ammonium bentonite) for solvent-based systems of low to medium polarity.

1. Advantages:
☆ High gelling efficiency over low to medium polarity organic liquids,especially in aromatic compounds.

☆ Ideal thixotropy property and anti-sediment property.

☆ High viscosity and excellent thickening property over a wide temperature range.

☆ Imparts particle suspension, preventing hard settling of pigment and fillers.

☆ Exerts strong film reinforce action in organic binder systems.

2.Typical Applications:
●Acrylic paint
●Road paint
●Alkyd paint
●Inks(mineral oil)
●Anti-corrosion paint
●Inks(Nitro)
●Baking paint
●Adhesive
●Bituminous paint
●Putties and sealant
●Chlorinated rubber paint
●Lubricating grease
●Polyester paint
●Cosmetics
●Primer paint
●Waster water treatment

3. Incorportions:

BK¬-883 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 95%ethanol, 95%methanol, 95%acetone or propylene carbonate) is 40%-60% by weight of BK¬-883.

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.

4. Recommended Levels:

The amount of BK¬-883 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.