Rheological-additive

Product : Rheological Additive BK-883B
Category : Rheological Additive for solvent based system(Organoclay)

BK-883B 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, especially in 200#solovent oil, coal tar, aromatic compounds.
* Produce reproducible thixotropic consistency over a wide temperature range.
* 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 Properties:

Color	Appearance	Density	Moisture (@105C,2hrs)	Fineness through 200 mesh	Loss on Ignition ( @1000C )
Light Yellow	Free Flowing Powder	1.7g/cm3	≤3.5%	≥98%	≤35%

3. Typical Applications:

Alkyd paint	Zinc-rich paint
Anti-corrosion paint	Inks(mineral oil)
Bituminous paint	Inks(Nitro)
Chlorinated rubber paint	Adhesive
Marine paint	Putties and sealant
None solvent epoxy paint	Lubricating grease
Primer paint	Oil drilling mud
Road paint	Waster water treatment
Silica paint

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.